[ZEPPELIN-6255] added message in the create-repository-modal for user not to be confused

…g a repository with an existing ID will update the existing repository

### What is this PR for?
A few sentences describing the overall goals of the pull request's commits.
First time? Check out the contributing guide - https://zeppelin.apache.org/contribution/contributions.html


- Currently, users can update the configuration of a registered repository used for dependency resolution by creating a new entry with the same ID under Add New Repository, but with different settings.

However, this behavior is not intuitive, and users may not realize that modifying an existing repository is possible in this way.

To improve clarity, we’ve added a simple explanation to the Interpreter page UI, informing users that creating a repository with an existing ID will update the existing configuration rather than creating a new one.

Alternatively, in the future, it may be worth considering implementing a dedicated Edit Repository feature, along with an option to Remove Repository, to make this workflow even clearer.


### What type of PR is it?
Bug Fix
Improvement
Feature
Documentation
Hot Fix
Refactoring
*Please leave your type of PR only*

- Improvement

### Todos
* [ ] - Task

### What is the Jira issue?
* Open an issue on Jira https://issues.apache.org/jira/browse/ZEPPELIN/
* Put link here, and add [ZEPPELIN-*Jira number*] in PR title, eg. [ZEPPELIN-533]
 - [ZEPPELIN-6255]

### How should this be tested?
* Strongly recommended: add automated unit tests for any new or changed behavior
* Outline any manual steps to test the PR here.

### Screenshots (if appropriate)
<img width="789" height="680" alt="image" src="https://github.com/user-attachments/assets/f1f3481e-1cdb-4757-bfec-25bab2944060" />

### Questions:
* Does the license files need to update?
* Is there breaking changes for older versions?
* Does this needs documentation?


Closes #5011 from yunajoe/feature/6255.

Signed-off-by: Jongyoul Lee <jongyoul@gmail.com>

Author: yunajoe

zeppelin-web-angular/.gitignore

@@ -44,4 +44,4 @@ Thumbs.db
 
 #
 .env
-yarn.lock
+yarn.lock

zeppelin-web-angular/package.json

@@ -99,4 +99,4 @@
       "pre-commit": "lint-staged"
     }
   }
-}
+}

zeppelin-web-angular/proxy.conf.js

@@ -25,13 +25,13 @@ const proxyConfig = [
     context: '/ws',
     target: 'ws://localhost:8080',
     secure: false,
-    ws:true,
+    ws: true,
     changeOrigin: true
   }
 ];
 
 function httpUrlToWSUrl(url) {
-  return url.replace(/(http)(s)?\:\/\//, "ws$2://");
+  return url.replace(/(http)(s)?\:\/\//, 'ws$2://');
 }
 
 function setupForCorporateProxy(proxyConfig) {
@@ -44,7 +44,7 @@ function setupForCorporateProxy(proxyConfig) {
     }
     proxyConfig.forEach(function(entry) {
       if (entry.context === '/ws') {
-        entry.target = httpUrlToWSUrl(proxyServer)
+        entry.target = httpUrlToWSUrl(proxyServer);
       } else {
         entry.target = proxyServer;
       }

zeppelin-web-angular/src/app/pages/workspace/interpreter/create-repository-modal/create-repository-modal.component.html

@@ -11,17 +11,15 @@
   -->
 
 <form nz-form [nzLayout]="'horizontal'" [formGroup]="validateForm" (ngSubmit)="handleSubmit()">
+  <p style="color: #1890ff; font-size: 12px;">
+    Adding a repository with an existing ID will update the existing repository.
+  </p>
   <nz-form-item>
     <nz-form-label [nzSpan]="6" nzRequired>
       ID
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
-      <input
-        nz-input
-        autofocus
-        formControlName="id"
-        placeholder="Repository id"
-      />
+      <input nz-input autofocus formControlName="id" placeholder="Repository id" />
     </nz-form-control>
   </nz-form-item>
   <nz-form-item>
@@ -30,15 +28,10 @@
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
       <nz-input-group [nzAddOnBefore]="addOnBeforeTemplate">
-        <input type="text"
-          nz-input
-          formControlName="url"
-          placeholder="Repository url">
+        <input type="text" nz-input formControlName="url" placeholder="Repository url" />
       </nz-input-group>
       <ng-template #addOnBeforeTemplate>
-        <nz-select name="urlProtocol"
-          [(ngModel)]="urlProtocol"
-          [ngModelOptions]="{standalone: true}">
+        <nz-select name="urlProtocol" [(ngModel)]="urlProtocol" [ngModelOptions]="{ standalone: true }">
           <nz-option [nzLabel]="'http://'" [nzValue]="'http://'"></nz-option>
           <nz-option [nzLabel]="'https://'" [nzValue]="'https://'"></nz-option>
           <nz-option [nzLabel]="'file://'" [nzValue]="'file://'"></nz-option>
@@ -59,24 +52,15 @@
       Username
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
-      <input
-        nz-input
-        formControlName="username"
-        placeholder="username"
-      />
+      <input nz-input formControlName="username" placeholder="username" />
     </nz-form-control>
   </nz-form-item>
   <nz-form-item>
     <nz-form-label [nzSpan]="6">
       Password
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
-      <input
-        nz-input
-        type="password"
-        formControlName="password"
-        placeholder="password"
-      />
+      <input nz-input type="password" formControlName="password" placeholder="password" />
     </nz-form-control>
   </nz-form-item>
   <nz-divider nzType="horizontal"></nz-divider>
@@ -96,60 +80,37 @@
       Host
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
-      <input
-        nz-input
-        formControlName="proxyHost"
-        placeholder="proxy host"
-      />
+      <input nz-input formControlName="proxyHost" placeholder="proxy host" />
     </nz-form-control>
   </nz-form-item>
   <nz-form-item>
     <nz-form-label [nzSpan]="6">
       Port
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
-      <input
-        nz-input
-        formControlName="proxyPort"
-        placeholder="proxy port"
-      />
+      <input nz-input formControlName="proxyPort" placeholder="proxy port" />
     </nz-form-control>
   </nz-form-item>
   <nz-form-item>
     <nz-form-label [nzSpan]="6">
       Login
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
-      <input
-        nz-input
-        formControlName="proxyLogin"
-        placeholder="proxy login"
-      />
+      <input nz-input formControlName="proxyLogin" placeholder="proxy login" />
     </nz-form-control>
   </nz-form-item>
   <nz-form-item>
     <nz-form-label [nzSpan]="6">
       Password
     </nz-form-label>
     <nz-form-control nz-col [nzSpan]="16">
-      <input
-        nz-input
-        type="password"
-        formControlName="proxyLogin"
-        placeholder="proxy password"
-      />
+      <input nz-input type="password" formControlName="proxyLogin" placeholder="proxy password" />
     </nz-form-control>
   </nz-form-item>
 </form>
 
 <div class="modal-footer ant-modal-footer">
-  <button
-    nz-button
-    nzType="primary"
-    [disabled]="!validateForm.valid"
-    (click)="handleSubmit()"
-    [nzLoading]="submitting"
-  >
+  <button nz-button nzType="primary" [disabled]="!validateForm.valid" (click)="handleSubmit()" [nzLoading]="submitting">
     Add
   </button>
   <button nz-button (click)="handleCancel()">