Add timezone to user profile (#20)

* [create-pull-request] automated change (#12966)

Co-authored-by: github-merge-queue <github-merge-queue@users.noreply.github.com>

* Add timezone to right panel profile.

* Add setting to publish timezone

* Add string for timezone publish

* Automatically update timezone when setting changes.

* Refactor to using a hook

And automatically refresh the timezone every minute.

* Check for feature support for extended profiles.

* lint

* Add timezone

* Remove unintentional changes

* Use browser default timezone.

* lint

* tweaks

* Set timezone publish at the device level to prevent all devices writing to the timezone field.

* Update hook to use external client.

* Add test for user timezone.

* Update snapshot for preferences tab.

* Hide timezone info if not provided.

* Stablize test

* Fix date test types.

* prettier

* Add timezone tests

* Add test for invalid timezone.

* Update screenshot

* Remove check for profile.

---------

Co-authored-by: ElementRobot <releases@riot.im>
Co-authored-by: github-merge-queue <github-merge-queue@users.noreply.github.com>

src/i18n/strings/en_EN.json

@@ -1426,6 +1426,7 @@
         "element_call_video_rooms": "Element Call video rooms",
         "experimental_description": "Feeling experimental? Try out our latest ideas in development. These features are not finalised; they may be unstable, may change, or may be dropped altogether. <a>Learn more</a>.",
         "experimental_section": "Early previews",
+        "extended_profiles_msc_support": "Requires your server to support MSC4133",
         "feature_disable_call_per_sender_encryption": "Disable per-sender encryption for Element Call",
         "feature_wysiwyg_composer_description": "Use rich text instead of Markdown in the message composer.",
         "group_calls": "New group call experience",
@@ -2719,6 +2720,7 @@
             "keyboard_view_shortcuts_button": "To view all keyboard shortcuts, <a>click here</a>.",
             "media_heading": "Images, GIFs and videos",
             "presence_description": "Share your activity and status with others.",
+            "publish_timezone": "Publish timezone on public profile",
             "rm_lifetime": "Read Marker lifetime (ms)",
             "rm_lifetime_offscreen": "Read Marker off-screen lifetime (ms)",
             "room_directory_heading": "Room directory",