Add bio fields (#6645)

* Add bio fields

- Fix #3211
- Fix #232
- Fix #121

* Display bio fields in web UI

* Fix output of links and missing fields

* Federate bio fields over ActivityPub as PropertyValue

* Improve how the fields are stored, add to Edit profile form

* Add rel=me to links in fields

Fix #121

app/javascript/mastodon/features/account/components/header.js

@@ -130,6 +130,7 @@ export default class Header extends ImmutablePureComponent {
 
     const content         = { __html: account.get('note_emojified') };
     const displayNameHtml = { __html: account.get('display_name_html') };
+    const fields          = account.get('fields');
 
     return (
       <div className={classNames('account__header', { inactive: !!account.get('moved') })} style={{ backgroundImage: `url(${account.get('header')})` }}>
@@ -140,6 +141,19 @@ export default class Header extends ImmutablePureComponent {
           <span className='account__header__username'>@{account.get('acct')} {lockedIcon}</span>
           <div className='account__header__content' dangerouslySetInnerHTML={content} />
 
+          {fields.size > 0 && (
+            <table className='account__header__fields'>
+              <tbody>
+                {fields.map((pair, i) => (
+                  <tr key={i}>
+                    <th dangerouslySetInnerHTML={{ __html: pair.get('name_emojified') }} />
+                    <td dangerouslySetInnerHTML={{ __html: pair.get('value_emojified') }} />
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          )}
+
           {info}
           {mutingInfo}
           {actionBtn}