Change public accounts pages to mount the web UI (#19319)

* 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

1 files changed, 7 insertions, 0 deletions

diff --git a/app/javascript/mastodon/components/error_boundary.js b/app/javascript/mastodon/components/error_boundary.js
index ca4a2cfe1..02d5616d6 100644
--- a/app/javascript/mastodon/components/error_boundary.js
+++ b/app/javascript/mastodon/components/error_boundary.js
@@ -3,6 +3,7 @@ import PropTypes from 'prop-types';
 import { FormattedMessage } from 'react-intl';
 import { version, source_url } from 'mastodon/initial_state';
 import StackTrace from 'stacktrace-js';
+import { Helmet } from 'react-helmet';
 
 export default class ErrorBoundary extends React.PureComponent {
 
@@ -84,6 +85,7 @@ export default class ErrorBoundary extends React.PureComponent {
               <FormattedMessage id='error.unexpected_crash.explanation' defaultMessage='Due to a bug in our code or a browser compatibility issue, this page could not be displayed correctly.' />
             )}
           </p>
+
           <p>
             { likelyBrowserAddonIssue ? (
               <FormattedMessage id='error.unexpected_crash.next_steps_addons' defaultMessage='Try disabling them and refreshing the page. If that does not help, you may still be able to use Mastodon through a different browser or native app.' />
@@ -91,8 +93,13 @@ export default class ErrorBoundary extends React.PureComponent {
               <FormattedMessage id='error.unexpected_crash.next_steps' defaultMessage='Try refreshing the page. If that does not help, you may still be able to use Mastodon through a different browser or native app.' />
             )}
           </p>
+
           <p className='error-boundary__footer'>Mastodon v{version} · <a href={source_url} rel='noopener noreferrer' target='_blank'><FormattedMessage id='errors.unexpected_crash.report_issue' defaultMessage='Report issue' /></a> · <button onClick={this.handleCopyStackTrace} className={copied ? 'copied' : ''}><FormattedMessage id='errors.unexpected_crash.copy_stacktrace' defaultMessage='Copy stacktrace to clipboard' /></button></p>
         </div>
+
+        <Helmet>
+          <meta name='robots' content='noindex' />
+        </Helmet>
       </div>
     );
   }