Closes#21830
Remove redundant icon sizing across the frontend. Components like
`Button`, `DropdownMenuItem`, and `CommandItem` already control child
SVG sizes via CSS selectors (e.g., `[&>svg]:size-icon-lg`), so explicit
`size` props and `className` overrides on icons nested inside them are
unnecessary. This PR strips those out and lets parent components handle
sizing consistently.
As a bonus, also migrates the `DropdownArrow` component from Emotion
CSS-in-JS to Tailwind utilities, replaces raw `<a>` tags with the `<Link
/>` component in the Premium page, and adds Storybook coverage for
`PremiumPageView`.
When discussing the changes needed for #22032 I was complaining about
how the `overflow-hidden` didn't work correctly so we could safely
remove it.
To continue these changes, I've refactored down how we work on mobile
within these triggers and enable full truncating and `max-w-`'s on each
of the content. Everything stemmed from the `<fieldset />` having a
`width: max-content` causing the content to extend past the bounds of
the container with `flex` in-toe.
Furthermore, the `(Default)` on `Preset` has been turned into a badge so
that we get the full truncation effect as we do with `Template Version`.
Follow-up improvements here might be to wrap the content of this input
on smaller displays.
### Preview
Top is the old, bottom is the new.
<img width="924" height="594" alt="preview"
src="https://github.com/user-attachments/assets/c1bbf152-03a6-4cad-b925-aad0549536a7"
/>
Kayla はな