Add guide on applying Front Matter defaults to jekyll-archives pages (#2466)

* Add guide on applying Front Matter defaults to jekyll-archives pages

Sources:
- https://github.com/mmistakes/minimal-mistakes/issues/2465#issuecomment-604839346
- https://github.com/iBug/iBug-source/commit/8685c1ecd984529dcb044ba816497313d8896f1e

* Update CHANGELOG and history

Update ui-text.yml for Vietnamese translation (#2459)

Add mention of Finnish

Update CHANGELOG and history

Finnish translations (#2455)

* Finnish translations

* Small fix to finnish translation

Update CHANGELOG and history

Release 4.19.1 💎

Update CHANGELOG and history

Update CHANGELOG and history

Update CHANGELOG and history

Use first_page_path from Paginate V2 if available (#2431)

Update CHANGELOG and history

Bump dependencies

Fix author profile links `z-index` order on small screens

Close #2440

Update smooth-scroll.js to `v16.1.2`

Close #2430

Force rebuild of site

Release 4.19.0 💎

Remove unused variables

Update CHANGELOG and history

Add "click" overlay to close masthead and follow button menus when open

Fixes #1168