Return to abbrev mode when previous-candidate failed

Add test cases for previous-candidate failure at abbrev mode

Return to abbrev mode when aborting dict edit if abbrev preedit is not empty

Add test cases for aborts on dict edit state from abbrev mode

ci: Exercise ABI compatibility check

ci: Install libabigail and elfutils for ABI compatibility check

pkgconfig: Omit skk-1.0 suffix from include directory

Release 1.1.1

pkgconfig: Move gee-0.8 to Requires.private

completion: Don't expose Gee.ArrayList from public API

ci: Re-enable docs build

Fix issues spotted by make distcheck

fep: Avoid Vala generics to work around build issues with GCC 14

Release 1.1.0

Replace build status badge with GitHub workflow's