make sure to show the border of a drawing immediately after creating it

Dependencies

• [2] 2FMZNSD7 experiment: only show drawing borders when they can be edited
• [3] CXCAERTB icons for current_mode
• [4] TGICJQD3 bugfix: move mode
• [5] JS6JSYOT online contextual help
• [6] JVRL5TWL store device-independent coordinates inside drawings
• [*] OTIBCAUJ love2d scaffold

Change contents

• replacement in main.lua at line 115
  [2.62]→[2.62:156](∅→∅)
  − if pmx > 16 and pmx < 16+drawingw and pmy > line.y and pmy < line.y+pixels(line.h) then
  [2.62]

  [2.156]
  + if pmx < 16+drawingw and pmy > line.y and pmy < line.y+pixels(line.h) then