* Update react-overlays to latest version
* Fix breaking changes in dropdown menus
* Use react-overlays built-in arrow positioning feature
* Re-implemented `.dropdown-menu__arrow` to have a defined width and height to improve positioning
* Moved wrapping div (`.dropdown-menu` from `DropdownMenu` to `Dropdown`)
* Wrap button in a span to solve issue with ref
* Temporarily remove animations
* Fix breaking changes in emoji picker
* Wrap EmojiPickerMenu in a div where react-overlays’ ref is added
* Fix breaking changes in language dropdown
* Fix breaking changes in privacy dropdown
* Fix breaking changes in search form
* Add animations back using `@keyframes`
* Fix arrow color in light theme
* Fix linting issue
* Remove unused `mounted` state
* Remove `placement` state from components and redux
And remove the placement state from props of the menu components.
* Remove abolution position to fix flip issue
* Remove z-index to fix modals and overlay positions
* Fix lint issues
* Set placement in privacy and language components
Copy the placement state into the `PrivacyDropdown` and `LanguageDropdown` components, to apply correct styling to the buttons depending on which placement the Overlay has.
* Move `placement` state to correct component
* Change public accounts pages to mount the web UI
* Fix handling of remote usernames in routes
- When logged in, serve web app
- When logged out, redirect to permalink
- Fix `app-body` class not being set sometimes due to name conflict
* Fix missing `multiColumn` prop
* Fix failing test
* Use `discoverable` attribute to control indexing directives
* Fix `<ColumnLoading />` not using `multiColumn`
* Add `noindex` to accounts in REST API
* Change noindex directive to not be rendered by default before a route is mounted
* Add loading indicator for detailed status in web UI
* Fix missing indicator appearing while account is loading in web UI
