fix(settings): single choice prefs not being dismissed when clicking outside dialog (#1311)

Some preferences that do not have an "Ok" or "cancel" button forced us to click on the choice again so that the card disappeared

Now the following preferences are dismissable:
- UI Mode (Theme)
- Tab Size
- Empty elements behavior

app/src/main/java/com/itsaky/androidide/preferences/editor.kt

@@ -165,6 +165,7 @@ private class TabSize(
   override val summary: Int? = string.msg_tab_size,
   override val icon: Int? = drawable.ic_font_ligatures,
 ) : SingleChoicePreference() {
+  override val dialogCancellable = true
 
   @IgnoredOnParcel private val choices = arrayOf("2", "4", "6", "8")
 
@@ -196,6 +197,7 @@ private class ColorSchemePreference(
   override val summary: Int? = R.string.idepref_editor_colorScheme_summary,
   override val icon: Int? = R.drawable.ic_color_scheme
 ) : SingleChoicePreference() {
+  override val dialogCancellable = true
 
   @IgnoredOnParcel private val schemes = IDEColorSchemeProvider.list()
 
@@ -212,11 +214,6 @@ private class ColorSchemePreference(
       colorScheme = schemes[position].key
     }
   }
-
-  override fun onConfigureDialog(preference: Preference, dialog: MaterialAlertDialogBuilder) {
-    super.onConfigureDialog(preference, dialog)
-    dialog.setCancelable(true)
-  }
 }
 
 @Parcelize

app/src/main/java/com/itsaky/androidide/preferences/general.kt

@@ -91,6 +91,8 @@ class UiMode(
   override val summary: Int? = R.string.idepref_general_uiMode_summary,
   override val icon: Int? = R.drawable.ic_ui_mode
 ) : SingleChoicePreference() {
+  override val dialogCancellable = true
+
   override fun getChoices(context: Context): Array<String> {
     return arrayOf(
       context.getString(R.string.uiMode_light),

app/src/main/java/com/itsaky/androidide/preferences/xmlPrefs.kt

@@ -225,6 +225,7 @@ private class EmptyElementsBehavior(
   override val title: Int = string.idepref_emptyElements_title,
   override val summary: Int? = string.idepref_emptyElements_summary
 ) : SingleChoicePreference() {
+  override val dialogCancellable = true
 
   override fun getSelectedItem(): Int {
     return EmptyElements.valueOf(emptyElementsBehavior).ordinal