System default libiconv of Alpine Linux only supports some charset (e.g. UTF-8).
Therefore, the preview card of the page which is not UTF-8 will be broken in the Docker environment.

Using GNU libiconv!

* i18n: Update Polish translation

* Update Polish translation

fix style

"©"削除処理をemojione_lightに移動

Fixes #4496

Use `text-align: unset` instead of `text-align: start` which Edge doesn't support for now.

Also remove default margin on Safari.

* Update Japanese Translation

* preserve "Unfortunately"("残念ながら")

preserve "Unfortunately"("残念ながら")

Previous and Next buttons

* fix(web_push_notifications): Send grouping title in welcome notification

* fix(web_push_notifications): Read message from last notification

Fix builds that fail on Heroku.

* Re-add outline

* respect default of web browser

* i18n: update Persian translation

* i18n: fix quotes

URI.extract is too strong, not limited to URLs, matched real text.
Same issue was present in language detector.

* fix(media_modal): Keyboard navigation

* fix(column_back_button): Use native button

* fix(media_gallery): Keyboard navigation

* fix(status_content): Make CW content focusable

* Remove outline from focused toot

* change style

Empty a element is created when there is no business e-mail input.

* Set contact address as mailto link

To be able to copy long email address

* Set style for mailto link

* Use a fainted text color for <hr> elements in the landing page

* remove trailing whitespace

* fix(tabs_bar): Check if transition is necessary

* feat(tabs_bar): Only apply optimization for touch devices