HIN-971: Reviewer respond to invitation

Added contextual box for reviewers invited to review a specific manuscript. Updated landing pages from emails.

packages/component-faraday-selectors/src/index.js

@@ -136,6 +136,17 @@ export const userNotConfirmed = ({ currentUser }) =>
   !currentUserIs({ currentUser }, 'staff') &&
   !get(currentUser, 'user.isConfirmed')
 
+export const pendingReviewerInvitation = (state, fragmentId) =>
+  chain(state)
+    .get(`fragments.${fragmentId}.invitations`, [])
+    .find(
+      inv =>
+        inv.userId === get(state, 'currentUser.user.id', '') &&
+        !inv.hasAnswer &&
+        inv.role === 'reviewer',
+    )
+    .value()
+
 export const currentUserIsReviewer = (state, fragmentId) => {
   const currentUser = selectCurrentUser(state)
   const invitations = get(state, `fragments.${fragmentId}.invitations`, [])