fix: theme of tippy preview modal

src/main/frontend/ui.cljs

@@ -580,5 +580,7 @@
 (rum/defc tippy
   [opts child]
   (Tippy (merge {:arrow true
+                 :sticky true
+                 :theme (:ui/theme @state/state)
                  :disabled (not (state/enable-tooltip?))} opts)
          child))