Dependencies Updates, Sidebar fixes, default plan, Radix single package (#297)

* Refactor Radix UI imports and update package dependencies, fix Sidebar "group" references, add default value to plan picker to preselect a plan

packages/ui/src/shadcn/dropdown-menu.tsx

@@ -2,12 +2,12 @@
 
 import * as React from 'react';
 
-import * as DropdownMenuPrimitive from '@radix-ui/react-dropdown-menu';
 import {
   CheckIcon,
   ChevronRightIcon,
   DotFilledIcon,
 } from '@radix-ui/react-icons';
+import { DropdownMenu as DropdownMenuPrimitive } from 'radix-ui';
 
 import { cn } from '../lib/utils';