fix(web): sentry sourcemapping round 2 - yesterday's 'fix' unfortunately doesn't upload the maps

chore(linux): Allow to run tests without integration tests

chore(ios): minor build-script cleanup

- remove SectionCompiler.required as unused
- minor fixes to common setSplitter
- add edge case tests

for: #8069

auto: increment master version to 17.0.135

chore(linux): Update docker builds

fix(common): support multichar escapes in element sets 🙀

chore(developer): refactor so KmnCompiler only created once within kmc 🙀

fix(developer): improve coverage, add todos 🙀

feat(developer): uset in element string 🙀

docs(linux): Update readme

fix(linux): Remove tags from package description

fix(linux): Add scrollbar to About dialog

Closes #9065.

fix(linux): Fix vertical alignment of labels in About dialog

refactor(linux): Extract methods

refactor(linux): Code refactoring

- add keyman ppa and update to patched ibus
- install nodejs 18
- update documentation

This is a temporary workaround - see discussion on #8057. While
this is not the perfect solution it should improve things in most
cases.

Fixes #4769.

Fixes #9005.

Turns out `list[str] | None` doesn't work with Python < 3.9 which
comes with Ubuntu 20.04 Focal, so we revert that change.

fix(web): re-establishes web srcmap uploading

fix(web): fixes up Web's InlinedOSK manual test page

chore(ios): standardizes iOS build scripts