avoiding redundant session id filesDir opening, this provision is called multiple times each time we open a room

Author: ouchadam

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/SessionModule.kt

@@ -163,6 +163,7 @@ internal abstract class SessionModule {
         @JvmStatic
         @Provides
         @SessionFilesDirectory
+        @SessionScope
         fun providesFilesDir(@UserMd5 userMd5: String,
                              @SessionId sessionId: String,
                              context: Context): File {