fix(blog): make tag filter dropdown inline instead of overlay

[debba]

The dropdown now flows in the document and pushes content down, avoiding overlap with the post list below.

https://claude.ai/code/session_01SBHNeJUKxabh7HWVXUzJpZ

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (1 file)

• website/src/app/globals.css - CSS refactoring for tag filter dropdown

Changes Analysis

This PR refactors the tag filter component's styling from an absolutely positioned floating dropdown to a static inline layout:

Change	Impact
Removed position: relative from .tag-filter	✅ No longer needed since dropdown is in normal flow
Removed absolute positioning (top, left, z-index) from dropdown	✅ Cleaner, more predictable layout
Added margin-top: 0.5rem to dropdown	✅ Proper spacing in inline layout
Removed box-shadow and max-width	✅ Stylistic choice for inline display
Removed mobile media query	✅ No longer needed for non-positioned element

The animation (tagFilterIn with translateY(-4px)) continues to work well for a subtle reveal effect, and flex-wrap: wrap naturally handles responsive item wrapping.