fix alt scroll up

Dependencies

• [2] 3TLPJ57B alt scroll via context and couple fixes
• [3] OJPGHVC3 entire log!
• [4] YK3MOJJL chonky refactor, wip other channels logs & diffs
• [5] 3XRG4BB6 rewritten nav-scrollable!
• [6] BNHJU2DU clippy fixes
• [*] WT3GA27P add cursor with selection

Change contents

• replacement in inflorescence/src/selection.rs at line 991
  [2.6520]→[4.39102:39147](∅→∅)
  − nav_scrollable::alt_scroll_down(
  [2.6520]

  [4.39147]
  + nav_scrollable::alt_scroll_up(
• replacement in inflorescence/src/selection.rs at line 1002
  [2.7004]→[4.39262:39307](∅→∅)
  − nav_scrollable::alt_scroll_down(
  [2.7004]

  [4.39307]
  + nav_scrollable::alt_scroll_up(
• replacement in inflorescence/src/selection.rs at line 1017
  [3.27840]→[4.39446:39491](∅→∅)
  − nav_scrollable::alt_scroll_down(
  [3.27840]

  [4.39491]
  + nav_scrollable::alt_scroll_up(