set window title within each app

Dependencies

• [2] VNJ2M364 bugfix: window title
• [3] AJB4LFRB try to maintain a reasonable line width
• [4] YGCT2D2O start loading settings as applicable
• [5] KKMFQDR4 editing source code from within the app
• [*] OTIBCAUJ love2d scaffold

Change contents

• edit in source.lua at line 72
  [3.167316]

  [3.167316]
  + love.window.setTitle('lines.love - source')
• edit in source.lua at line 200
  [3.172371]

  [3.172371]
  + love.window.setTitle('lines.love - source')
• edit in main.lua at line 91
  [3.187329]→[2.16:69](∅→∅)
  − love.window.setTitle('lines.love - '..Current_app)
• edit in main.lua at line 112
  [3.187950]→[2.70:123](∅→∅)
  − love.window.setTitle('lines.love - '..Current_app)