Namitha : Fix alignment of Search Filters and Events sections

[Namitha7070]

Description

Related PRS (if any):

Main changes explained:

1. Added 60px top margin to Dates section - Pushes the Dates and Online filter groups down to align with the first row of event cards on the right
2. Added 80px top margin to Branches section - Aligns Branches, Themes, and Categories filter groups with the second row of event cards, matching the Figma design
3. Eliminated excessive vertical spacing - Removed the uneven spacing that caused the Search Filters container to extend beyond its intended boundary
4. Achieved vertical alignment parity - Both the left sidebar (Search Filters) and right content area (Events grid) now maintain consistent vertical alignment throughout the page
5. Resolved UI/UX design discrepancy - The layout now matches the approved Figma specifications with proper visual balance and spacing proportions between sections

How to test:

1. check into current branch
2. do npm install and ... to run this PR locally
3. Clear site data/cache
4. log as admin user
5. go to dashboard→ /communityportal
6. verify alignment between the Branches/Themes/Categories group aligns with the second row of event cards, matching the Figma design

Screenshots or videos of changes:

Week.30.mp4

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[HemanthNidamanuru]

Hi Namitha,

I tested this PR locally. The filters align correctly with the second row of event cards. One small observation though, the light grey placeholder block inside the event cards is not aligned properly in dark mode. I believe this may not be part of this PR, let me know if it comes under your scope.