feat(web): suggestion banner UI enhancements - suggestion expanding + scrollable banner

auto: increment master version to 17.0.249

feat(core): cross-segment markers 🙀 

fix(web): bulk renderer interface for recent-version targeting keyboards

chore(android/app): Update whatsnew for 17.0

For: #10369

Co-authored-by: Marc Durdin <marc@durdin.net>

fix(web): U_ key id -> text for all subkeys; is now preprocessed

fix(ios): multiple keyboard slide-in animations on app start

fix(web): keyboard-documentation rendering mode

chore(android): Update targetSdkVersion to 34

auto: increment master version to 17.0.248

chore(developer,core): change sample and test files to use \u{…} 🙀

feat(core): unescape u 🙀

- remove unused function

For: #10369

- easier to understand loop
- comments

For: #10369

- split out parse_next_marker()
- use NFD safe boundaries to segment marker interaction

For: #10369

fix(ios): banner image management

- support out-of-order re-adding
- test for updated marker map

#10369

Merge branch 'feat/core/10319-escaping-you-epic-ldml' into feat/developer/10319-remove-old-escape-epic-ldml

For: #10319

- don't try to remove irregular sentinel sequences
- update test

For: #10319

- remove stray change to kmx_processevent.cpp
- fix escaping of syntax chars
- fix comment per review

For: #10319

auto: increment master version to 17.0.247