fix(custom-buttons): revert custom button name to 'Reschedule'

Partial revert of b0de535

In the above commit, "Reschedule" was renamed to "Set Due Date"
but the affected menu item in the Reviewer is "Reschedule":
offering "Set Due Date" and "Reset progress"

Fixes 16598

AnkiDroid/src/main/java/com/ichi2/anki/preferences/CustomButtonsSettingsFragment.kt

@@ -20,11 +20,8 @@ import android.content.Intent
 import androidx.annotation.VisibleForTesting
 import androidx.appcompat.app.AlertDialog
 import androidx.core.content.edit
-import androidx.preference.ListPreference
 import androidx.preference.Preference
-import com.ichi2.anki.CollectionManager.TR
 import com.ichi2.anki.R
-import com.ichi2.anki.ui.internationalization.toSentenceCase
 import com.ichi2.utils.negativeButton
 import com.ichi2.utils.positiveButton
 import com.ichi2.utils.show
@@ -56,15 +53,6 @@ class CustomButtonsSettingsFragment : SettingsFragment() {
             }
             true
         }
-        setDynamicTitle()
-    }
-
-    private fun setDynamicTitle() {
-        findPreference<ListPreference>(getString(R.string.custom_button_schedule_card_key))?.let {
-            val preferenceTitle = TR.actionsSetDueDate().toSentenceCase(this, R.string.sentence_set_due_date)
-            it.title = preferenceTitle
-            it.dialogTitle = preferenceTitle
-        }
     }
 
     @VisibleForTesting(otherwise = VisibleForTesting.NONE)

AnkiDroid/src/main/res/xml/preferences_custom_buttons.xml

@@ -27,7 +27,6 @@ TODO: Add a unit test
 -->
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
     android:title="@string/custom_buttons"
     android:key="@string/pref_app_bar_buttons_screen_key">
     <Preference
@@ -53,7 +52,7 @@ TODO: Add a unit test
             android:entries="@array/custom_button_labels"
             android:entryValues="@array/custom_button_values"
             android:key="@string/custom_button_schedule_card_key"
-            tools:title="Set due date"
+            android:title="@string/card_editor_reschedule_card"
             app:useSimpleSummaryProvider="true"/>
         <ListPreference
             android:defaultValue="2"