feat: Optional full-width toggle for document display (#2869)

* Migration, model, presenter

* Working implementation

* fix: Account for table of contents

* Checkbox -> Toggle

* Checkbox -> Toggle

server/routes/api/documents.ts

@@ -1106,6 +1106,7 @@ router.post("documents.update", auth(), async (ctx) => {
     id,
     title,
     text,
+    fullWidth,
     publish,
     autosave,
     done,
@@ -1128,10 +1129,12 @@ router.post("documents.update", auth(), async (ctx) => {
   }
 
   const previousTitle = document.title;
+
   // Update document
   if (title) document.title = title;
   if (editorVersion) document.editorVersion = editorVersion;
   if (templateId) document.templateId = templateId;
+  if (fullWidth !== undefined) document.fullWidth = fullWidth;
 
   if (!user.team?.collaborativeEditing) {
     if (append) {