fix: Remove unused constant import

The commit removes the unused import of `FEEDBACK_EMAIL` constant from `MainFragment.kt`.

Author: jatezzz

app/src/main/java/com/itsaky/androidide/fragments/MainFragment.kt

@@ -13,7 +13,7 @@ import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
 import androidx.core.text.HtmlCompat
 import androidx.fragment.app.viewModels
-import com.adfa.constants.FEEDBACK_EMAIL
+
 import com.google.android.material.progressindicator.LinearProgressIndicator
 import com.itsaky.androidide.R
 import com.itsaky.androidide.activities.MainActivity