Spell check input fields (#23395)

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

@@ -242,6 +242,7 @@ class ComposeForm extends ImmutablePureComponent {
             id='cw-spoiler-input'
             className='spoiler-input__input'
             lang={this.props.lang}
+            spellCheck
           />
         </div>
 

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

@@ -93,6 +93,7 @@ class Option extends React.PureComponent {
             maxLength={50}
             value={title}
             lang={lang}
+            spellCheck
             onChange={this.handleOptionTitleChange}
             suggestions={this.props.suggestions}
             onSuggestionsFetchRequested={this.onSuggestionsFetchRequested}