Next.js Supabase V3 (#463)

Version 3 of the kit:
- Radix UI replaced with Base UI (using the Shadcn UI patterns)
- next-intl replaces react-i18next
- enhanceAction deprecated; usage moved to next-safe-action
- main layout now wrapped with [locale] path segment
- Teams only mode
- Layout updates
- Zod v4
- Next.js 16.2
- Typescript 6
- All other dependencies updated
- Removed deprecated Edge CSRF
- Dynamic Github Action runner

apps/dev-tool/styles/theme.css

@@ -66,26 +66,6 @@
   --animate-accordion-down: accordion-down 0.2s ease-out;
   --animate-accordion-up: accordion-up 0.2s ease-out;
 
-  @keyframes accordion-down {
-    from {
-      height: 0;
-    }
-
-    to {
-      height: var(--radix-accordion-content-height);
-    }
-  }
-
-  @keyframes accordion-up {
-    from {
-      height: var(--radix-accordion-content-height);
-    }
-
-    to {
-      height: 0;
-    }
-  }
-
   @keyframes fade-up {
     0% {
       opacity: 0;