fix: Phone dropdown field has extra width (#6866)

## Description

This PR solves the issue #6865 

## Current Behaviour
<img width="486" alt="Screenshot 2024-09-03 at 2 04 55 AM"
src="https://github.com/user-attachments/assets/c88f3c22-0b18-4974-a4ea-94ecd5f1379d">

## Expected behavior
<img width="518" alt="Screenshot 2024-09-03 at 2 05 46 AM"
src="https://github.com/user-attachments/assets/2a6cb64a-7858-4607-85a4-0214aeacc2ab">

packages/twenty-front/src/modules/ui/input/components/internal/phone/components/PhoneCountryPickerDropdownSelect.tsx

@@ -48,7 +48,7 @@ export const PhoneCountryPickerDropdownSelect = ({
   );
 
   return (
-    <DropdownMenu width="200px" disableBlur>
+    <DropdownMenu width="auto" disableBlur>
       <DropdownMenuSearchInput
         value={searchFilter}
         onChange={(event) => setSearchFilter(event.currentTarget.value)}