Tech Debt: Project Issue

[jleandroperez]

Debt:

• Drop AppDelegate's imperative applyStyle calls
• Drop AppDelegate's ViewController indirections
• Deduplicate Editor Constants (FontSize-Y)
• UserDefaults Cleanup
• Spinner Location
• Button Size Warnings (Main Nib)
• Fix newNoteWasPressed flow (Belongs to Notes List)
• Font Size should be handled by the App Delegate
• Drop MainMenu.xib