fix: issues filter dropdown clipping and responsive toolbar layout on mobile

[AbhiVarde]

Problem

On mobile viewports, the issues page toolbar had two layout bugs:

• Filter dropdown was clipped/cut off by its parent scroll container
• All toolbar controls (search, sort, filters, buttons) were crammed
  into a single row, causing search to shrink and buttons to overflow

Solution

Dropdown fix:

• Switched filter dropdown to position: fixed using filtersTriggerRef
  to calculate exact viewport coordinates
• Dropdown now anchors to the right edge of the trigger button and never
  clips or overflows off screen

Toolbar layout fix:

• Row 1 (mobile): Search input takes full width
• Row 2 (mobile): Sort + Filters buttons each take 50% width
• Row 3 (mobile): Run with Ghost + New Issue in a 2-column grid
• Desktop layout is completely unchanged (md:flex, md:w-auto)

Files Changed

• apps/web/src/components/issue/issues-list.tsx

Screenshots

Type	Before	After
Toolbar
Dropdown

[vercel]

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