Shankhanil Saha

Fixes #5972: Profile name accepts invalid inputs like single dot (.) or single space ( )

18

## Explanation Fixes #5972 - Updates `utility/src/main/java/org/oppia/android/util/profile/ProfileNameValidator.kt` to only allow names which have only alphabets and spaces. - Now names with single dots(.) and single spaces( ) are not allowed...

[BUG]: Build fails due to missing Android SDK Build-Tools 34.0.0, API Level 35, and proxy-related Maven issues

2

### Describe the bug While setting up the Oppia Android project on both Windows and Linux, I encountered several build issues that seem related to missing dependencies or configuration defaults....