`height: 100%` in `align-self: stretch` flexboxes doesn't work on Safari < 11.

https://bugs.webkit.org/show_bug.cgi?id=137730

This workaround uses flexbox instead of `height: 100%` to stretch height.

- Be less strict about the Ruby version, which resolves a build failure.
- Add libidn as a dependency (until Nanobox adds idn-ruby to the list of gems with a dependency on it).
- Remove redundant bundler commands (Nanobox's Ruby engine handles these things cleanly on its own, now).

* Fix multipoint shortcode bug

* Added testcase for composite emoji shortcode

* Add destination informations to exception on SubscribeWorker and DeliveryWorker.

* Simplify delivery error message.

* Prevent changing Exception type...

* fix typo.

* Update Japanese translations for remote profile, settings toggle button and web share button.

* Update Japanese translation for remote profile.

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

* fix(column_header): Invalid ARIA role

* fix(column): Remove hidden nodes from the DOM

* refactor(column_link): Remove unused property hideOnMobile

* fix(column_header): Use aria-pressed

* fix(column_header): Make collapsed content not focusable, add focusable property

* fix(column_loading): Make header non-focusable

* fix(column_settings): Use role to group the toggles

* Fix padding in hero container, landing page

Erase hero container padding to fit registration form to full width. By this setting, heading padding disappears, so I adjust heading padding.

* Specify attribute strictly for heading padding

To overwrite padding-bottom in superior settings.

* Make padding shorthand more concise

* fix(compose): Use nav and remove redundant aria-label

* fix(tabs_tab): Use nav and add aria-label

* fix(app): Add aria-label for settings toggle button

* chore: Run yarn manage:translations

* Adjust mobile landing page

Change mobile viewport threshold to 840px in consideration of padding. Fix loss of "container hero" padding in about/more under 675px.

* Fix indent

Divide media-items to equal width, and hide overlaps.

* Allow longer link text on landing page (reduce padding for Mobile)

* remove empty line

* Send short account URL to remote instance (regression from #3844)

Resolve #4347

* remove format: 'json'

* Small fr.json update

• Translation for #4342
• Fixed a couple of typos as well as a few weird phrasings

* insert final newline

* Update and expanding Dutch strings for 1.5

Only privacy policy is not translated, but is included. Hopefully I have time to translate this another time (you can set your own privacy policy now anyway).

* Missing file

* A few changes cause of changes in another file

* Fix

* Update Dutch strings for 1.5

* nl

* fix

don't know how that ended up there

* Update nl.yml

Deployment with Capistrano was failing due to a mismatch between the loaded
version of Capistrano and the one specified in the deployment
configuration. Bumping the version in config/deploy.rb fixes this issue.

* chore(yarn): Install detect-passive-events

* fix(column): Use passive listener