fix: update elpaca installer from v0.11 to v0.12

Elpaca renamed repos/ to sources/ and changed several internal symbols.
The old installer was cloning into repos/ while the new elpaca code
expected sources/, causing "Non-existant source dir" errors.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

chore: switch back to Hack

chore: increase font size

fix: adapt agent shell claude command

chore: Switch fonts

After some time, again switch.

chore: automatically start server on Android

fix: handle more cases in android repair

fix: on Android, do not exceed process limit

chore: cleanup

chore: update claude command

feat: add lsp-booster

feat: add k + to expand the popper

feat: simplify keybindings

feat: exclude popper window from resizes

fix: typo

fix: remove trailing paren

feat: more keybindings to agent-shell

feat: add agent-shell

feat: add slint and typescript

feat: ensure rust analyzer runs on less threads