Merge lines.love

Dependencies

• [2] MSDHRXWU Merge upstream into main
• [3] Z6HI3K55 correct a comment
• [4] D5C2QGQX include a fork
• [5] D4FEFHQC flesh out Readme
• [6] AVTNUQYR basic test-enabled framework
• [7] ZLEPKWDJ fork: capture frontend for a note-taking system
• [8] SPNMXTYR have file API operate on state object
• [9] Z4KNS42N to open a file without a terminal, drag it on!
• [10] 73OCE2MC after much struggle, a brute-force undo
• [11] YT5P6TO6 bugfix: save previous file when dropping a new one on
• [12] LF7BWEG4 group all editor globals
• [13] IEHG6ORO new fork for #1
• [14] SBS2F7GR link to export tool
• [*] OTIBCAUJ love2d scaffold
• [*] FS2ITYYH record a known issue

Change contents

• edit in main.lua at line 105
  [5.1157]→[3.8:35](∅→∅),[5.1157]→[3.8:35](∅→∅),[5.1157]→[3.8:35](∅→∅)
  − App.initialize_globals()
• edit in README.md at line 88
  [5.197]→[4.20:146](∅→∅),[5.197]→[4.20:146](∅→∅)
  − * https://codeberg.org/akkartik/text.love -- a stripped down version without

  − drawings; useful starting point for some forks
• resolve order conflict in README.md at line 88
  [5.2141]

  [5.19]