Updates to Go To quick access

[dmitrivMS]

Fixed bug where zero-based offset toggle did not always work (updating the setting async now).
Fixed bug where going to line number greater than lines in file wasn't working.
Updated description (tooltip) of the quick pick to include offset and negative values information.
Removed second line in the pick item.
Updated guidance text to more closely follow the grammar and offer instructions for entering column and offset numbers.

Due to length limitations, I removed current line/column displayed in the pick item label before - this information is alaready available in the status bar, so I think it's ok to do so.

[Copilot]

Pull Request Overview

This PR fixes several bugs and improves the user experience of the "Go to Line" quick access feature:

• Fixed async setting persistence for zero-based offset toggle
• Fixed navigation to line numbers exceeding file line count
• Updated UI guidance text and removed redundant status information

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/vs/workbench/contrib/codeEditor/browser/quickaccess/gotoLineQuickAccess.ts	Updated placeholder text to include comprehensive usage instructions for offset mode and negative values
src/vs/editor/contrib/quickAccess/test/browser/gotoLineQuickAccess.test.ts	Updated test assertions to handle default column value and corrected expected line numbers for out-of-range inputs
src/vs/editor/contrib/quickAccess/browser/gotoLineQuickAccess.ts	Refactored offset toggle handling with getter/setter for async persistence, simplified validation logic, and enhanced label generation with contextual guidance

[dmitrivMS]

GIF of new behavior:

[TylerLeonhardt]

Copilot, for this one here's how I want you to test...

• Try using the Go To quick access putting in:
  • a line number
  • a line number then a colon then line number
  • another colon (to drop into offset mode)

For all of these, try:

• negative numbers
• numbers that are larger than the size of the file

[vs-code-engineering]

🤖 Copilot has tried out this change! Members of the team can view the recording here (run)

[jojemoro2609-lgtm]

Fixed bug where zero-based offset toggle did not always work (updating the setting async now). Fixed bug where going to line number greater than lines in file wasn't working. Updated description (tooltip) of the quick pick to include offset and negative values information. Removed second line in the pick item. Updated guidance text to more closely follow the grammar and offer instructions for entering column and offset numbers.

Due to length limitations, I removed current line/column displayed in the pick item label before - this information is alaready available in the status bar, so I think it's ok to do so.

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