chore: DB version for browser support (#10016)

- impl storage
- still not working: refreshing, init code

src/main/frontend/handler/page.cljs

@@ -1056,7 +1056,9 @@
                          (plugin-handler/hook-plugin-app :today-journal-created {:title today-page}))]
           (when (db/page-empty? repo today-page)
             (if (config/db-based-graph? repo)
-              (create-f)
+              (let [page-exists (db/get-page today-page)]
+                (when-not page-exists
+                  (create-f)))
               (p/let [file-name (date/journal-title->default title)
                       file-rpath (str (config/get-journals-directory) "/" file-name "."
                                       (config/get-file-extension format))