Improve ESLint rules for JSX (#3608)

* Add react/no-string-refs ESLint rule

* Add react/jsx-boolean-value ESLint rule

* Add react/jsx-closing-bracket-location ESLint rule

* Add react/jsx-indent ESLint rule

* Add react/jsx-curly-spacing ESLint rule

* Add react/jsx-equals-spacing ESLint rule

* Add react/jsx-first-prop-new-line ESLint rule

* Add react/jsx-no-duplicate-props ESLint rule

* Add react/jsx-tag-spacing ESLint rule

app/javascript/mastodon/components/autosuggest_textarea.js

@@ -191,7 +191,8 @@ class AutosuggestTextarea extends ImmutablePureComponent {
               key={suggestion}
               data-index={suggestion}
               className={`autosuggest-textarea__suggestions__item ${i === selectedSuggestion ? 'selected' : ''}`}
-              onClick={this.onSuggestionClick}>
+              onClick={this.onSuggestionClick}
+            >
               <AutosuggestAccountContainer id={suggestion} />
             </div>
           ))}