fix: incorrect return values when edn parsing fails for queries

safe-read-string assumed all parsed strings were maps by returning {}
on failure. This could lead to subtle bugs in our new query layer and
other non-map features like hiccup

src/main/frontend/handler/paste.cljs

@@ -105,7 +105,7 @@
                                           "web application/logseq"))))
           blocks-str (when blocks-blob (.text blocks-blob))]
          (when blocks-str
-           (common-util/safe-read-string blocks-str))))
+           (common-util/safe-read-map-string blocks-str))))
 
 (defn- markdown-blocks?
   [text]