chore: update frontmatter and workflow (#128)

* update frontmatter

* fix workflow

Update about.md (#112)

fix: allow refresh callback to be optional as the docs described (#111)

* fix allow optional callback as stated

* updated cypress deps due to failing test

fix: on scroll called after component is unmounted (#101)

* fix: onscroll handler called after unmount
Co-authored-by: Fuxing Loh <[email protected]>

fix: onscroll handler called after unmount (#100)

docs: Added vue 3 install instruction (#88)

* docs: Added vue 3 install notes

* Added migration notes

chore: refactor all JS specs to TS (#92)

* chore: refactor all JS specs to TS

* deps: update cypress to v6.3.0

fix: v-hl-responsive last-child wrong parent class (#86)

fix: removed margin for last child in container (#81)

fix: prevent content from collapsing when empty (#74)