unnecessary args

Dependencies

• [2] UHB4GARJ left/right margin -> left/right coordinates
• [3] XNFTJHC4 split keyboard handling between Text and Drawing
• [4] SPSW74Y5 add state arg to Text.keychord_pressed
• [5] HMODUNJE scroll on backspace
• [6] QCPXQ2E3 add state arg to a few functions
• [*] BULPIBEG beginnings of a module for the text editor

Change contents

• replacement in text.lua at line 210
  [3.2510]→[2.15575:15654](∅→∅)
  − local top2 = Text.to2(State, State.screen_top1, State.left, State.right)
  [3.2510]

  [2.15654]
  + local top2 = Text.to2(State, State.screen_top1)