Allow multi-line image descriptions. (Glitch)

app/javascript/flavours/glitch/features/composer/upload_form/item/index.js

@@ -169,13 +169,12 @@ export default class ComposerUploadFormItem extends React.PureComponent {
               </div>
               <label>
                 <span style={{ display: 'none' }}><FormattedMessage {...messages.description} /></span>
-                <input
+                <textarea
                   maxLength={420}
                   onBlur={handleBlur}
                   onChange={handleChange}
                   onFocus={handleFocus}
                   placeholder={intl.formatMessage(messages.description)}
-                  type='text'
                   value={description}
                 />
               </label>

app/javascript/flavours/glitch/styles/components/composer.scss

@@ -262,7 +262,7 @@
     background-repeat: no-repeat;
     overflow: hidden;
 
-    input {
+    textarea {
       display: block;
       position: absolute;
       box-sizing: border-box;
@@ -294,7 +294,7 @@
 
   &.active {
     & > div {
-      input { opacity: 1 }
+      textarea { opacity: 1 }
     }
   }
 }