Fix tooltip z-index issue

Author: sanne-san

assets/css/modal.css

@@ -28,7 +28,7 @@
   position: fixed;
   inset: 0;
   background: rgb(0 0 0 / 60%);
-  z-index: 99;
+  z-index: 999;
   overflow: auto;
 }
 

assets/js/dashboard/util/tooltip.tsx

@@ -91,7 +91,7 @@ function TooltipMessage({
       ref={setPopperElement}
       style={popperStyle}
       {...popperAttributes}
-      className="z-[999] px-2 py-1 rounded-sm text-sm text-gray-100 font-medium bg-gray-800 dark:bg-gray-700"
+      className="z-[99] px-2 py-1 rounded-sm text-sm text-gray-100 font-medium bg-gray-800 dark:bg-gray-700"
       role="tooltip"
     >
       {children}