Release v2.6

docs(screenshots): update documentation preview screenshots

feat: bump version to 2.4, target Android 16 (API 36) & update releas…

…e pipeline

ci: flatten and simplify release notes formatting

ci: flatten and simplify release notes formatting

ci: only filter jules merge commits in release notes

feat: add customizable widget padding settings

chore: bump version to 2.1

refactor: optimize settings layout and update to v2.0

readme: update testing flow with proper opt-in link, update screenshots