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/routes/welcome-local.tsx

@@ -68,7 +68,7 @@ export default function WelcomeRoute() {
                     </div>
                   </div>
 
-                  <div className="!-mt-2 -ml-6 flex items-center justify-center">
+                  <div className="-mt-2! -ml-6 flex items-center justify-center">
                     <img
                       src={DeviceImage}
                       alt="JetKVM Device"
@@ -90,7 +90,7 @@ export default function WelcomeRoute() {
                       theme="light"
                       text="Set up your JetKVM"
                       LeadingIcon={({ className }) => (
-                        <img src={LogoMark} className={cx(className, "mr-1.5 !h-5")} />
+                        <img src={LogoMark} className={cx(className, "mr-1.5 h-5!")} />
                       )}
                       textAlign="center"
                       to="/welcome/mode"