fix: make overflow menu auto-width to prevent text wrapping

src/popup/index.html

@@ -315,7 +315,7 @@
                         </button>
                         <div
                             id="more-menu-dropdown"
-                            class="hidden absolute right-0 top-full mt-1 border border-border bg-bg z-50 min-w-[10rem]"
+                            class="hidden absolute right-0 top-full mt-1 border border-border bg-bg z-50 whitespace-nowrap"
                         >
                             <button
                                 id="btn-export-privkey"