[Jdreioe]

Summary

Adds the requested Likely next row above Typing's existing controls while the on-screen keyboard is visible.

Likely next Messages, first 4 ranked suggestions
Existing Typing controls and saved Phrases
Message
On-screen keyboard

Uses the existing experiment setting and in-memory History ranking. Suggestions are read-only and use the History Page's insertion/speech behavior. The row hides when History is hidden, unavailable or empty. Changing History visibility or returning from Settings discards cached suggestions before refreshing. English and Danish setting descriptions now cover both the Page and row.

Refs #213. The keep/promote/delete experiment decision remains open. Stacked on #341; merge #340, then #341, then this PR, retargeting each as its base merges.

Evidence

• Before: Likely next was available only on a Typing Screen Page.
  After: emulator UI test verifies the keyboard-only row, read-only semantics, tap action, visibility gates, and retention of the existing saved-Phrase controls and composed Message.
• 25 Typing ViewModel tests pass, including bounded suggestions, existing activation policy, source=likely_next metadata without text, and clearing/refusing disabled suggestions.
• Existing Typing content tests pass. Keyboard visibility tests pass, including native keyboard retraction with animations enabled and Gboard selected on the disposable emulator.
• Existing shared ranking is unchanged; no new persistent data or dependencies.

Merge Danger

Door: two-way

Blast Radius: Typing

Android-only follow-up. Off by default with the existing experimental setting. Landscape uses a shorter row to leave room for the Message and action controls.