Add document insights panel (#4418)

* Add document context to allow accessing editor in header, modals, and elsewhere

* lint

* framework

* Hacking together fast

* Insights

* Spacing tweak, docs

shared/i18n/locales/en_US/translation.json

@@ -44,6 +44,8 @@
   "Delete {{ documentName }}": "Delete {{ documentName }}",
   "Permanently delete": "Permanently delete",
   "Permanently delete {{ documentName }}": "Permanently delete {{ documentName }}",
+  "History": "History",
+  "Insights": "Insights",
   "Home": "Home",
   "Drafts": "Drafts",
   "Templates": "Templates",
@@ -102,8 +104,6 @@
   "Default collection": "Default collection",
   "Deleted Collection": "Deleted Collection",
   "Unpin": "Unpin",
-  "History": "History",
-  "No history yet": "No history yet",
   "New": "New",
   "Only visible to you": "Only visible to you",
   "Draft": "Draft",
@@ -431,6 +431,30 @@
   "Restore version": "Restore version",
   "Publish": "Publish",
   "Publishing": "Publishing",
+  "No history yet": "No history yet",
+  "Stats": "Stats",
+  "{{ count }} minute read": "{{ count }} minute read",
+  "{{ count }} minute read_plural": "{{ count }} minute read",
+  "{{ count }} words": "{{ count }} word",
+  "{{ count }} words_plural": "{{ count }} words",
+  "{{ count }} characters": "{{ count }} character",
+  "{{ count }} characters_plural": "{{ count }} characters",
+  "{{ number }} emoji": "{{ number }} emoji",
+  "No text selected": "No text selected",
+  "{{ count }} words selected": "{{ count }} word selected",
+  "{{ count }} words selected_plural": "{{ count }} words selected",
+  "{{ count }} characters selected": "{{ count }} character selected",
+  "{{ count }} characters selected_plural": "{{ count }} characters selected",
+  "Views": "Views",
+  "No one else has viewed yet": "No one else has viewed yet",
+  "Viewed {{ count }} times by {{ teamMembers }} people": "Viewed {{ count }} time by {{ teamMembers }} people",
+  "Viewed {{ count }} times by {{ teamMembers }} people_plural": "Viewed {{ count }} times by {{ teamMembers }} people",
+  "Collaborators": "Collaborators",
+  "Created": "Created",
+  "Last updated": "Last updated",
+  "Creator": "Creator",
+  "Last edited": "Last edited",
+  "Previously edited": "Previously edited",
   "Sorry, it looks like you don’t have permission to access the document": "Sorry, it looks like you don’t have permission to access the document",
   "Sorry, the last change could not be persisted – please reload the page": "Sorry, the last change could not be persisted – please reload the page",
   "This template will be permanently deleted in <2></2> unless restored.": "This template will be permanently deleted in <2></2> unless restored.",
@@ -606,7 +630,6 @@
   "Last accessed": "Last accessed",
   "Date shared": "Date shared",
   "Shared nested": "Shared nested",
-  "Views": "Views",
   "Add to Slack": "Add to Slack",
   "Settings saved": "Settings saved",
   "document published": "document published",