Implement option to remove sub habits from groups

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/edit/EditHabitActivity.kt

@@ -300,7 +300,7 @@ class EditHabitActivity : AppCompatActivity() {
             habit.unit = binding.unitInput.text.trim().toString()
         }
         habit.type = habitType
-        habit.parent = parentGroup
+        habit.group = parentGroup
         habit.groupId = parentGroup?.id
         habit.groupUUID = parentGroup?.uuid
 

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/ListHabitsSelectionMenu.kt

@@ -75,12 +75,14 @@ class ListHabitsSelectionMenu @Inject constructor(
         val itemColor = menu.findItem(R.id.action_color)
         val itemArchive = menu.findItem(R.id.action_archive_habit)
         val itemUnarchive = menu.findItem(R.id.action_unarchive_habit)
+        val itemRemoveFromGroup = menu.findItem(R.id.action_remove_from_group)
         val itemNotify = menu.findItem(R.id.action_notify)
 
         itemColor.isVisible = true
         itemEdit.isVisible = behavior.canEdit()
         itemArchive.isVisible = behavior.canArchive()
         itemUnarchive.isVisible = behavior.canUnarchive()
+        itemRemoveFromGroup.isVisible = behavior.areSubHabits()
         itemNotify.isVisible = prefs.isDeveloper
         activeActionMode?.title = (listAdapter.selectedHabits.size + listAdapter.selectedHabitGroups.size).toString()
         return true
@@ -106,6 +108,11 @@ class ListHabitsSelectionMenu @Inject constructor(
                 return true
             }
 
+            R.id.action_remove_from_group -> {
+                behavior.onRemoveFromGroup()
+                return true
+            }
+
             R.id.action_delete -> {
                 behavior.onDeleteHabits()
                 return true

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/views/HabitCardView.kt

@@ -97,7 +97,6 @@ class HabitCardView(
         set(value) {
             scoreRing.setPercentage(value.toFloat())
             scoreRing.setPrecision(1.0f / 16)
-//            behavior.onChangeScore(habit!!)
         }
 
     var unit

uhabits-android/src/main/res/menu/list_habits_selection.xml

@@ -41,6 +41,11 @@
         android:title="@string/unarchive"
         app:showAsAction="never"/>
 
+    <item
+        android:id="@+id/action_remove_from_group"
+        android:title="@string/remove_from_group"
+        app:showAsAction="never"/>
+
     <item
         android:id="@+id/action_delete"
         android:title="@string/delete"

uhabits-android/src/main/res/values/strings.xml

@@ -29,6 +29,7 @@
     <string name="delete">Delete</string>
     <string name="archive">Archive</string>
     <string name="unarchive">Unarchive</string>
+    <string name="remove_from_group">Remove from group</string>
     <string name="add_habit">Add habit</string>
     <string name="color_picker_default_title">Change color</string>
     <string name="toast_habit_created">Habit created</string>