Improve accessibility (part 3) (#4405)

* fix(compose): Add aria-label for the navigation links

* fix(search): Add input label

* fix(navigation_bar): Link description

* fix(autosuggest_textarea): Add input label

* fix(compose_form): Add input label

* fix(upload_button): Add input label

* fix(account/header): Add link content

* fix(column_header): Use h1 tag

* fix(column_header): Labels move buttons moving column

* fix(settings_text): Add label to input

* fix(column_header): Remove role from h1

* fix(modal_root): Use role=dialog

* fix(modal_root): Focus restauration

* fix(modal_root): Apply inert to sibligs

* fix(column_header): Add role=button

* chore(eslint): Disable jsx-a11y/label-has-for

app/javascript/mastodon/features/compose/components/navigation_bar.js

@@ -18,6 +18,7 @@ export default class NavigationBar extends ImmutablePureComponent {
     return (
       <div className='navigation-bar'>
         <Permalink href={this.props.account.get('url')} to={`/accounts/${this.props.account.get('id')}`}>
+          <span style={{ display: 'none' }}>{this.props.account.get('acct')}</span>
           <Avatar src={this.props.account.get('avatar')} animate size={40} />
         </Permalink>