Merge lines.love

Dependencies

• [2] OWYI7OJT Merge upstream
• [3] H3KWPK3G regression: dropping files on the window
• [4] BJ5X5O4A let's prevent the text cursor from ever getting on a drawing
• [5] ZLEPKWDJ fork: capture frontend for a note-taking system
• [6] 5T2E3PDV couple of bugfixes to file-handling
• [7] MGOQ5XAV start uppercasing globals
• [8] LF7BWEG4 group all editor globals
• [9] MSDHRXWU Merge upstream into main
• [10] Z4KNS42N to open a file without a terminal, drag it on!
• [11] BPWFKBXT new test: dragging and dropping a file on lines.love
• [12] AVQ5MC5D finish uppercasing all globals
• [13] AVTNUQYR basic test-enabled framework
• [14] CE4LZV4T drop last couple of manual tests
• [15] PWHZPJJM always show current filename in window title
• [16] YT5P6TO6 bugfix: save previous file when dropping a new one on
• [17] UHB4GARJ left/right margin -> left/right coordinates
• [18] OTIBCAUJ love2d scaffold
• [19] 5STHSG4U remove some duplication

Change contents

• edit in main_tests.lua at line 18
  [4.17201]→[3.7:53](∅→∅),[4.17201]→[3.7:53](∅→∅),[4.17201]→[3.7:53](∅→∅),[4.85118]→[3.54:80](∅→∅),[4.85118]→[3.54:80](∅→∅),[4.85118]→[3.54:80](∅→∅)
  − Editor_state = edit.initialize_test_state()

  − edit.draw(Editor_state)
• edit in main.lua at line 105
  [4.16]→[3.82:114](∅→∅),[4.16]→[3.82:114](∅→∅),[4.16]→[3.82:114](∅→∅)
  − Text.redraw_all(Editor_state)