simplify dagger setup/AppModule

app/src/main/kotlin/at/connyduck/pixelcat/dagger/AppModule.kt

@@ -19,13 +19,11 @@
 
 package at.connyduck.pixelcat.dagger
 
-import android.app.Application
 import android.content.Context
 import android.content.SharedPreferences
 import androidx.preference.PreferenceManager
 import androidx.room.Room
 import at.connyduck.pixelcat.PixelcatApplication
-import at.connyduck.pixelcat.db.AccountManager
 import at.connyduck.pixelcat.db.AppDatabase
 import at.connyduck.pixelcat.db.RoomConverter
 import dagger.Module
@@ -36,14 +34,12 @@ import javax.inject.Singleton
 class AppModule {
 
     @Provides
-    fun providesApp(app: PixelcatApplication): Application = app
+    fun providesContext(app: PixelcatApplication): Context = app
 
     @Provides
-    fun providesContext(app: Application): Context = app
-
-    @Provides
-    fun providesSharedPreferences(app: Application): SharedPreferences {
-        return PreferenceManager.getDefaultSharedPreferences(app)
+    @Singleton
+    fun providesSharedPreferences(context: Context): SharedPreferences {
+        return PreferenceManager.getDefaultSharedPreferences(context)
     }
 
     @Provides
@@ -54,10 +50,4 @@ class AppModule {
             .addTypeConverter(converter)
             .build()
     }
-
-    @Provides
-    @Singleton
-    fun providesAccountManager(db: AppDatabase): AccountManager {
-        return AccountManager(db)
-    }
 }

app/src/main/kotlin/at/connyduck/pixelcat/db/AccountManager.kt

@@ -23,6 +23,8 @@ import android.util.Log
 import at.connyduck.pixelcat.db.entitity.AccountAuthData
 import at.connyduck.pixelcat.db.entitity.AccountEntity
 import at.connyduck.pixelcat.model.Account
+import javax.inject.Inject
+import javax.inject.Singleton
 
 /**
  * This class caches the account database and handles all account related operations
@@ -30,7 +32,8 @@ import at.connyduck.pixelcat.model.Account
 
 private const val TAG = "AccountManager"
 
-class AccountManager(db: AppDatabase) {
+@Singleton
+class AccountManager @Inject constructor(db: AppDatabase) {
 
     private var activeAccount: AccountEntity? = null