v18.0.0

@Jefiozie

What's Changed

build: updated deps for the project by @Jefiozie in #428
build: use npm in favor of yarn by @Jefiozie in #429
ci: update actions to latest versions by @Jefiozie in #430
test: fixed package-lock by @SanderElias in #436
feat: add tabindex input and binding by @ConnorSmith-pf in #438
Revert: "feat: add tabindex input and binding" by @Jefiozie in #440
feat: add SCSS theme with css variables support by @Harpush in #367
feat: modernize angular split by @Harpush in #444
fix: break circular reference between split and split-area by @Harpush in #453
fix: handle TouchEvent in non touch capable devices for firefox by @Harpush in #452
fix: filter non visible areas after indices array slice by @Harpush in #451
fix: missing transition when hiding areas in pixel mode by @Harpush in #456
Update v18 by @Jefiozie in #460
ci: remove complaince by @Jefiozie in #464
fix: home and documentation to match latest changes by @Harpush in #462
chore: release 18.0.0 by @Jefiozie in #465

Full Changelog: angular-split-v17.2.0...v18.0.0