fix shoutbox header, use custom scroll-to-bottom system, remove vue-chat-scroll, temporarily add chat test hack

update changelog with 2.3.0

See merge request !1367

close #1050 - add a quick settings menu to timeline header

Closes #1050

See merge request !1355

Translations update from Weblate

See merge request !1363

Currently translated at 100.0% (686 of 686 strings)

Translation: Pleroma/Pleroma-FE
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma-fe/ja_PEDANTIC/

# Conflicts:
#   CHANGELOG.md

close #1054 add sensitive by default option

Closes #1054

See merge request !1354

Fix punycode handling to be less stupid

Closes #1064

See merge request !1361

# Conflicts:
#   CHANGELOG.md

close #1043 - add basic validation for statusless status notifications

Closes #1043

See merge request !1360

close #1048: Focus input in emoji picker and react picker

Closes #1048

See merge request !1357

update shelljs to get rid of warnings on build

See merge request !1358

fix chat unread badge

See merge request !1359

fix vue warnings

See merge request !1356

fix redline again

See merge request !1353

Fix some UI jumpiness on scroll lock

See merge request pleroma/pleroma-fe!1343

Optimize chat perf in long run

See merge request pleroma/pleroma-fe!1350

Translations update from Weblate

See merge request pleroma/pleroma-fe!1351