What Changed

• Removed the Collapsible wrapper around each project’s thread list in the left sidebar.
• Kept the project open/closed state logic the same, but made thread rows render directly from sidebar state instead of through a measured-height collapsible panel.
• Preserved the existing list/reorder animation path while ensuring thread rows and overflow are hidden cleanly when a project is not showing its thread panel.

Why

The sidebar had a desync bug where the project caret could remain in the expanded state while the thread list was visually missing. This showed up most often after refresh and after project reordering triggered by message sends.

The root cause was that visibility depended on both state and a height-measured animated container. The chevron was driven by persisted project expansion state, but the rows were still gated by a separate collapsible layout path that could end up with stale height during hydration or reorder. Removing that wrapper makes visibility purely state-driven and keeps animation out of the correctness path, which is a more reliable long-term structure.

UI Changes

This changes sidebar interaction behavior, so before/after screenshots and a short video should be included for:

• Refresh with a project expanded
• Sending a message that causes project resorting
• Expanding/collapsing a project with visible threads

vid

ps : don't mind the lag, it's coz of low memory on my device.

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes