chore(ui): Patch-bump packages and use tailwind upgrade (#456)

* chore(ui): Patch bump in tailwind related packages and framer-motion

tailwind: [4.1.6 -> 4.1.7](https://github.com/tailwindlabs/tailwindcss/compare/v4.1.6...v4.1.7)
@tailwindcss/postcss: 4.1.6 -> 4.1.7
@tailwindcss/vite: 4.1.6 -> 4.1.7

Also patch-bump of:
framer-motion: [12.11.0 -> 12.11.4](https://github.com/motiondivision/motion/compare/v12.11.0...v12.11.4)

No source changes seemingly needed, have not rerun the migrate.

* chore(ui): Run tailwind upgrade and review changes

Ran the `npx @tailwindcss/upgrade` and accepted the changes that seemed safe.

They're things like:
- `data-[closed]:translate-y-9` -> `data-closed:translate-y-8` ()swaps the square bracket syntax to a `-` modifier)
- `bg-gradient-to-*` -> `bg-linear-to-*`
- `/[*%]` -> `/*` (swap square bracket syntax for inline)
- `theme(*.*)` -> `var(--*-*)` (theme styles are exposed as variables with hyphens for dots now)
- `[background-size:*]` -> `bg-size[*]` (move the square brackets inside tag)
- `[.active_&]:` -> `in[.active]:` (new syntax for parent query)
- `!class` -> `class!` (e.g. _!overflow-visible_ to _overflow-visible!_, for [important flag](https://tailwindcss.com/docs/styling-with-utility-classes#using-the-important-flag style)
- `w-[1px]` -> `w-px` (that's a new syntax for a 1px width)
- `h-[1px]` -> `h-px` (that's a new syntax for a 1px height)
- moved `html` and `html, body` global settings in the _index.css_

Also killed off an unused `import` and blank css class.
Also picked up the two `flex-grow` -> `grow` that I missed last pass, oops.

ui/src/components/VideoOverlay.tsx

@@ -14,7 +14,7 @@ interface OverlayContentProps {
 }
 function OverlayContent({ children }: OverlayContentProps) {
   return (
-    <GridCard cardClassName="h-full pointer-events-auto !outline-hidden">
+    <GridCard cardClassName="h-full pointer-events-auto outline-hidden!">
       <div className="flex h-full w-full flex-col items-center justify-center rounded-md border border-slate-800/30 dark:border-slate-300/20">
         {children}
       </div>
@@ -376,7 +376,7 @@ export function PointerLockBar({ show }: PointerLockBarProps) {
           transition={{ duration: 0.5, ease: "easeInOut", delay: 0.5 }}
         >
           <div>
-            <Card className="rounded-b-none shadow-none !outline-0">
+            <Card className="rounded-b-none shadow-none outline-0!">
               <div className="flex items-center justify-between border border-slate-800/50 px-4 py-2 outline-0 backdrop-blur-xs dark:border-slate-300/20 dark:bg-slate-800">
                 <div className="flex items-center space-x-2">
                   <BsMouseFill className="h-4 w-4 text-blue-700 dark:text-blue-500" />