feat: v3.2.1 — Launcher drawer search & keyboard behaviour customization

[oSumAtrIX]

With the help of Codex! There are behavioral bugs I have not yet tackled. See the video for a demo

a.mp4

Bugs:

• In search the results seem to glitch to the top
• Back gesture and swipe down back to drawer are buggy when "Keep app grid before typing" is on
• Auto-open single result when typing fast until a single result is visible sometimes does not work
• Entering the drawer shows a visible switch from drawer to search and vice versa, just visual noise
• Slowly swiping into the drawer, opens the keyboard to early, instead of the animation following the gesture

I will try to fix the issues, but help would be appreciated. Directly push to this PR branch if you want!