fix update developer mode initialization

[krushnarout]

will fix this crash too when opening developer page

flutter: ----------------FIREBASE CRASHLYTICS----------------
flutter: This widget has been unmounted, so the State no longer has a context (and should be considered defunct).
Consider canceling any active work during "dispose" or using the "mounted" getter to determine if the State is still active.
flutter: 
#0      State.context.<anonymous closure> (package:flutter/src/widgets/framework.dart:952:9)
#1      State.context (package:flutter/src/widgets/framework.dart:958:6)
#2      _DeveloperSettingsPageState.initState.<anonymous closure> (package:omi/pages/settings/developer.dart:42:7)

[gemini-code-assist]

Code Review

The pull request refactors the initialization of the DeveloperModeProvider. Previously, some boolean flags were initialized in the provider's constructor, and the initialize() method was called separately in developer.dart. The changes move all such initializations from the constructor into the initialize() method within developer_mode_provider.dart. Consequently, the DeveloperModeProvider is now initialized by calling its initialize() method immediately upon creation in main.dart, and the redundant initialize() call in developer.dart's initState has been removed.