Fix position of ringview of subhabits after removed from the group

uhabits-core/src/jvmMain/java/org/isoron/uhabits/core/commands/AddToGroupCommand.kt

@@ -37,6 +37,7 @@ data class AddToGroupCommand(
             habit.group = hgr
             hgr.habitList.add(habit)
             entries.forEach { habit.originalEntries.add(it) }
+            habit.observable.notifyListeners()
         }
     }
 }

uhabits-core/src/jvmMain/java/org/isoron/uhabits/core/commands/RemoveFromGroupCommand.kt

@@ -35,6 +35,7 @@ data class RemoveFromGroupCommand(
             habit.groupUUID = null
             habitList.add(habit)
             entries.forEach { habit.originalEntries.add(it) }
+            habit.observable.notifyListeners()
         }
     }
 }