Fix column design broken with very long title (#5493)

* Fix #5314

* fix not beautiful code

* fix broken design with mobile view

* remove no longer needed code

app/javascript/mastodon/components/column_header.js

@@ -137,7 +137,9 @@ export default class ColumnHeader extends React.PureComponent {
       <div className={wrapperClassName}>
         <h1 tabIndex={focusable ? 0 : null} role='button' className={buttonClassName} aria-label={title} onClick={this.handleTitleClick}>
           <i className={`fa fa-fw fa-${icon} column-header__icon`} />
-          {title}
+          <span className='column-header__title'>
+            {title}
+          </span>
 
           <div className='column-header__buttons'>
             {backButton}