Remove unused dependencies and clean up exports

- Remove @babel/core (not used)
- Remove @radix-ui/react-select (not used)
- Remove components/ui/select.tsx (unused file)
- Fix duplicate exports in MultiItemPicker and SingleItemPicker

Author: statico

components/MultiItemPicker.tsx

@@ -24,7 +24,7 @@ type MultiItemPickerProps<T extends string> = {
   onChange: (newValue: Set<T>) => void;
 };
 
-export const MultiItemPicker = <T extends string>({
+const MultiItemPicker = <T extends string>({
   children,
   selected,
   options,

components/SingleItemPicker.tsx

@@ -23,7 +23,7 @@ type SingleItemPickerProps = {
   onChange: (newValue: any) => void;
 };
 
-export const SingleItemPicker = ({
+const SingleItemPicker = ({
   children,
   selected,
   options,

components/ui/select.tsx

@@ -10,10 +10,8 @@
     "start": "next start"
   },
   "dependencies": {
-    "@babel/core": "^7.28.6",
     "@radix-ui/react-checkbox": "^1.3.3",
     "@radix-ui/react-popover": "^1.1.15",
-    "@radix-ui/react-select": "^2.2.6",
     "@radix-ui/react-slot": "^1.2.4",
     "@radix-ui/react-tooltip": "^1.2.8",
     "class-variance-authority": "^0.7.1",