Recent colors panel only gets updated when it's being hidden.
Removes unused objects in SceneEditor.
Fixes getMultilineTextInput desktop implementation.
Fixes getMultilineTextInput Android implementation.
Merge pull request #843 from RotaruDan/sceneEditorCleaning

Removes unused objects in SceneEditor.
Merge pull request #844 from RotaruDan/multiLineInputFix

Multi line text input fix
Merge pull request #842 from RotaruDan/recentColors

Recent colors panel only gets updated when it's being hidden.