fix(widget): open the tapped note from the note list widget

The note list widget used WidgetUtil.pendingIntentFlagCompat() for its
PendingIntent template, which adds FLAG_IMMUTABLE on Android 14+ (API 34+).
An immutable PendingIntent cannot be modified at send time, so the
per-item fill-in intent carrying the note id was discarded and
EditNoteActivity received an intent without PARAM_NOTE_ID, falling back
to creating a new note instead of opening the tapped one.

Use FLAG_MUTABLE explicitly (as SingleNoteWidget already does) so the
fill-in intent with the note id is applied, and use the appWidgetId as
PendingIntent request code so widget instances no longer share one
PendingIntent.

Affected devices: Android 14 and newer (API 34+). On Android 12-13
pendingIntentFlagCompat() returned FLAG_MUTABLE and on Android 11 and
below no flag was added, so the fill-in intent worked there.

AI-assistant: Cline Extension 1.x (GLM-5.3)
Signed-off-by: Mark <mark-smirnow@yandex.ru>

Author: mark99i

app/src/main/java/it/niedermann/owncloud/notes/widget/notelist/NoteListWidget.kt

@@ -19,7 +19,6 @@ import com.owncloud.android.lib.common.utils.Log_OC
 import it.niedermann.owncloud.notes.R
 import it.niedermann.owncloud.notes.edit.EditNoteActivity
 import it.niedermann.owncloud.notes.persistence.NotesRepository
-import it.niedermann.owncloud.notes.shared.util.WidgetUtil
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
 import androidx.core.net.toUri
@@ -98,9 +97,9 @@ class NoteListWidget : AppWidgetProvider() {
                     }
 
                     val pendingIntentFlags =
-                        WidgetUtil.pendingIntentFlagCompat(PendingIntent.FLAG_UPDATE_CURRENT or Intent.FILL_IN_COMPONENT)
+                        PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_MUTABLE or Intent.FILL_IN_COMPONENT
                     val editNotePendingIntent =
-                        PendingIntent.getActivity(context, 0, editNoteIntent, pendingIntentFlags)
+                        PendingIntent.getActivity(context, appWidgetId, editNoteIntent, pendingIntentFlags)
 
                     val views = RemoteViews(context.packageName, R.layout.widget_note_list).apply {
                         setRemoteAdapter(R.id.note_list_widget_lv, serviceIntent)