feat: move away from carbon components and TinyMCE (#597)

* feat: remove tinymce & replace org sidebar

* chore: PR Fixes

* chore: move ui font into src dir

* remove files in vite config

* use google font import for loading font

* remove custom font

* more fonts update

* remove font bold

* more removals of font bold

* fix import

* checkpoint

* chore: checkpoint (add course & lms shadcn sidebar)

* minor css improvements and try out font sans

* chore: replace carbon components with shadcn's

* chore: replace carbon components with shadcn _ v3

* chore: ui fixes & storybook update

* feat: UI cleanup

* fix: quick ui fixes

* chore: update pnpm-lock.yaml with new dependencies and versions; fix output.css formatting

* chore: add isloading to button

* feat: add loading state to button stories

* chore: feedback fixes

* fix: feedback fixes

* chore: remove console

* fix: PR comments

* fix: PR comments

---------

Co-authored-by: Rotimi Best <best@classroomio.com>

packages/ui/src/base/select/select-group-heading.svelte

@@ -0,0 +1,21 @@
+<script lang="ts">
+  import { Select as SelectPrimitive } from 'bits-ui';
+  import { cn } from '../../tools';
+  import type { ComponentProps } from 'svelte';
+
+  let {
+    ref = $bindable(null),
+    class: className,
+    children,
+    ...restProps
+  }: ComponentProps<typeof SelectPrimitive.GroupHeading> = $props();
+</script>
+
+<SelectPrimitive.GroupHeading
+  bind:ref
+  data-slot="select-group-heading"
+  class={cn('text-muted-foreground px-2 py-1.5 text-xs', className)}
+  {...restProps}
+>
+  {@render children?.()}
+</SelectPrimitive.GroupHeading>