drop some obsolete args

Dependencies

• [2] NHNP76LG swap return values
• [3] LXTTOB33 extract a couple of files
• [4] 5ZA3BRNY add state arg to a few functions
• [5] UHB4GARJ left/right margin -> left/right coordinates

Change contents

• replacement in search.lua at line 65
  [3.880]→[2.443:531](∅→∅)
  − local pos = Text.pos_at_start_of_cursor_screen_line(State, State.left, State.right)
  [3.880]

  [3.1002]
  + local pos = Text.pos_at_start_of_cursor_screen_line(State)
• replacement in search.lua at line 113
  [3.1925]→[2.532:620](∅→∅)
  − local pos = Text.pos_at_start_of_cursor_screen_line(State, State.left, State.right)
  [3.1925]

  [3.2047]
  + local pos = Text.pos_at_start_of_cursor_screen_line(State)