bugfix for merge commit

Dependencies

• [2] 36Z442IV back to commit 8123959e52f without code editing
• [3] QF3HGULO Merge text.love
• [4] JCXL74WV bring back everything from commit a68647ae22
• [*] OTIBCAUJ love2d scaffold

Change contents

• replacement in main.lua at line 95
  [2.4223]→[2.4223:4322](∅→∅)
  − local em = App.newText(love.graphics.getFont(), 'm')

  − initialize_window_geometry(App.width(em))
  [2.4223]

  [2.4322]
  + initialize_window_geometry(App.width('m'))
• edit in main.lua at line 99
  [2.4515]→[2.4515:4538](∅→∅)
  − Editor_state.em = em