make cursor more obvious

Dependencies

• [2] HOSPP2AN crisp font rendering
• [3] KWOJ6XHE cut/copy selected text to clipboard
• [4] H2DPLWMV snapshot: wrapping long lines at word boundaries
• [5] 5DOC2CBM extract a function
• [*] BULPIBEG beginnings of a module for the text editor

Change contents

• replacement in text.lua at line 89
  [3.165]→[2.608:659](∅→∅)
  − love.graphics.circle('fill', x,y+Line_height, 2)
  [3.165]

  [3.224]
  + love.graphics.circle('fill', x,y+Line_height, 3)