Code quality

• Move some tooltips out of Graphics/Cursor namespace. karaoke
• Re-write TimeTagsUtilsTest test. karaoke
• Combine LyricEditor and LyricEditorStateManager. karaoke
• Refactor cursor position algorithm in lyric editor. karaoke
• Refactor lyric editor. karaoke
• Make calcuoation caret position abstract for better maintainance. karaoke

Editor

• Adjust color in lyric editor. karaoke
• Show alert checker in lyric editor. karaoke
• Combine cursor and moving cursor position into single bindable in lyric editor. karaoke
• Auto move position while change selected lyric in lyric editor. karaoke
• Display invalid position at lyric editor. karaoke
• Adjust style in lyric editor. karaoke
• Enable to click time-tag to navigation to target time. karaoke
• Able to right-click to create new in lyric editor. karaoke
• Implement combine and separate lyric in lyric editor. karaoke

Fix

• Fix cause error if move lyric time. karaoke

Testing

• Writing test case to list all the color and hex code in OverlayColourProvider. karaoke