Fix propTypes warning in Blurhash, key warning in ProfileInfoPanel

app/soapbox/components/blurhash.js

@@ -56,7 +56,7 @@ function Blurhash({
 }
 
 Blurhash.propTypes = {
-  hash: PropTypes.string.isRequired,
+  hash: PropTypes.string,
   width: PropTypes.number,
   height: PropTypes.number,
   dummy: PropTypes.bool,

app/soapbox/features/ui/components/profile_info_panel.js

@@ -131,7 +131,7 @@ class ProfileInfoPanel extends ImmutablePureComponent {
 
               {fields.map((pair, i) =>
                 isTicker(pair.get('name', '')) ? (
-                  <CryptoAddress ticker={getTicker(pair.get('name')).toLowerCase()} address={pair.get('value_plain')} />
+                  <CryptoAddress key={i} ticker={getTicker(pair.get('name')).toLowerCase()} address={pair.get('value_plain')} />
                 ) : (
                   <dl className='profile-info-panel-content__fields__item' key={i}>
                     <dt dangerouslySetInnerHTML={{ __html: pair.get('name_emojified') }} title={pair.get('name')} />