revert: undo t0ng7u UI design-system refactor

Revert the following commits:
- 308e3e347 feat(web): polish themed data views and add task log details
- b2a890e75 fix: Fontsource asset resolution across workspace layouts
- 9d1ca545e refactor(web): refine data-table cards and pricing page layout
- 0918bdb49 refactor(web): consolidate design-system primitives and responsive data views
- 262ab9312 style(web): unify design system across default frontend

web/default/src/features/channels/components/dialogs/fetch-models-dialog.tsx

@@ -22,22 +22,17 @@ import { useState, useEffect, useMemo } from 'react'
 import { useTranslation } from 'react-i18next'
 import { toast } from 'sonner'
 
-import { Button } from '@/components/design-system/button'
-import { Input } from '@/components/design-system/input'
-import {
-  Tabs,
-  TabsContent,
-  TabsList,
-  TabsTrigger,
-} from '@/components/design-system/tabs'
 import { Dialog } from '@/components/dialog'
+import { Button } from '@/components/ui/button'
 import { Checkbox } from '@/components/ui/checkbox'
 import {
   Collapsible,
   CollapsibleContent,
   CollapsibleTrigger,
 } from '@/components/ui/collapsible'
+import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
+import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs'
 import {
   Tooltip,
   TooltipContent,
@@ -349,7 +344,7 @@ export function FetchModelsDialog({
                   {redirectOnlySet.has(normalizeModelName(model)) && (
                     <Tooltip>
                       <TooltipTrigger
-                        render={<Info className='text-warning h-3.5 w-3.5' />}
+                        render={<Info className='h-3.5 w-3.5 text-amber-500' />}
                       ></TooltipTrigger>
                       <TooltipContent>
                         {t('From model redirect, not yet added to models list')}
@@ -388,7 +383,7 @@ export function FetchModelsDialog({
           t('Fetch available models from upstream')
         )
       }
-      contentClassName='sm:max-w-3xl'
+      contentClassName='max-w-3xl'
       contentHeight='auto'
       bodyClassName='space-y-4'
       footer={