Fix linting errors

Author: markusjwetzel

src/components/Trans.js

@@ -11,9 +11,9 @@ const propTypes = {
 function Trans({ id, defaultMessage, variables }) {
   const intl = useIntl();
 
-  return useMemo(() => {
-    return intl.trans({ id, defaultMessage, variables });
-  }, [intl.locale]);
+  return useMemo(() => intl.trans({ id, defaultMessage, variables }), [
+    intl.locale,
+  ]);
 }
 
 Trans.propTypes = propTypes;

src/createDict.js

@@ -13,6 +13,6 @@ export default function createDict(scope, defaultMessages) {
       throw new Error(`Could not find translation "${key}" in scope ${scope}.`);
     }
 
-    return Object.assign({}, messages[key], { variables });
+    return { ...messages[key], variables };
   };
 }

src/reducer.js

@@ -10,7 +10,7 @@ export default function reducer(state, action) {
     case 'ADD_MESSAGES': {
       return {
         ...state,
-        messages: Object.assign({}, action.messages, state.messages),
+        messages: { ...action.messages, ...state.messages },
       };
     }
     default: {