Merge lines.love

Dependencies

• [2] X3GTAQ6E Merge lines.love
• [3] ORRSP7FV deduce test names on failures
• [4] LF7BWEG4 group all editor globals
• [5] BPWFKBXT new test: dragging and dropping a file on lines.love
• [6] CE4LZV4T drop last couple of manual tests
• [7] ZLEPKWDJ fork: capture frontend for a note-taking system
• [8] YT5P6TO6 bugfix: save previous file when dropping a new one on
• [9] PTDO2SOT add state arg to schedule_save
• [10] UHB4GARJ left/right margin -> left/right coordinates
• [11] MSDHRXWU Merge upstream into main
• [12] H3KWPK3G regression: dropping files on the window

Change contents

• edit in run_tests.lua at line 18
  [4.631]→[3.48250:48466](∅→∅),[4.631]→[3.48250:48466](∅→∅),[4.631]→[3.48250:48466](∅→∅),[4.916]→[3.48467:48524](∅→∅),[4.916]→[3.48467:48524](∅→∅)
  − check_eq(#Editor_state.lines, 3, '#lines')

  − check_eq(Editor_state.lines[1].data, 'abc', 'lines:1')

  − check_eq(Editor_state.lines[2].data, 'def', 'lines:2')

  − check_eq(Editor_state.lines[3].data, 'ghi', 'lines:3')

  − check_eq(App.filesystem['foo'], 'abc\ndef\n', 'check')