Redesign the landing page, mount public timeline on it (#4122)

* Redesign the landing page, mount public timeline on it

* Adjust the standalone mounted component to the lacking of router

* Adjust auth layout pages to new design

* Fix tests

* Standalone public timeline polling every 5 seconds

* Remove now obsolete translations

* Add responsive design for new landing page

* Address reviews

* Add floating clouds behind frontpage form

* Use access token from public page when available

* Fix mentions and hashtags links, cursor on status content in standalone mode

* Add footer link to source code

* Fix errors on pages that don't embed the component, use classnames

* Fix tests

* Change anonymous autoPlayGif default to false

* When gif autoplay is disabled, hover to play

* Add option to hide the timeline preview

* Slightly improve alt layout

* Add elephant friend to new frontpage

* Display "back to mastodon" in place of "login" when logged in on frontpage

* Change polling time to 3s

5 files changed, 1 insertions, 1 deletions

diff --git a/app/javascript/images/cloud2.png b/app/javascript/images/cloud2.png
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Binary files differdiff --git a/app/javascript/images/cloud3.png b/app/javascript/images/cloud3.png
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Binary files differdiff --git a/app/javascript/images/cloud4.png b/app/javascript/images/cloud4.png
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Binary files differdiff --git a/app/javascript/images/elephant-fren.png b/app/javascript/images/elephant-fren.png
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Binary files differdiff --git a/app/javascript/images/logo.svg b/app/javascript/images/logo.svg
index c233db842..16cb3a944 100644
--- a/app/javascript/images/logo.svg
+++ b/app/javascript/images/logo.svg
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