experiment at avoiding some merge conflicts

Dependencies

• [2] X3CQLBTR set window title within each app
• [3] 7VGDIPLC more robust state validation
• [*] KKMFQDR4 editing source code from within the app

Change contents

• edit in source.lua at line 75
  [5.167316]

  [2.11]
  +

  +

  +

  + -- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
• edit in source.lua at line 80
  [2.57]

  [5.167316]
  +

  +

  +
• edit in source.lua at line 228
  [5.172371]

  [2.58]
  +

  +

  +

  + -- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
• edit in source.lua at line 233
  [2.104]

  [5.172371]
  +

  +

  +
• edit in run.lua at line 36
  [3.48]

  [5.179133]
  +

  +

  +

  + -- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
• edit in run.lua at line 42
  [5.179197]

  [5.179197]
  +

  +
• edit in run.lua at line 126
  [3.81]

  [5.182229]
  +

  +

  +

  + -- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
• edit in run.lua at line 131
  [5.182292]

  [5.182292]
  +

  +

  +