Fixed diskman dropdown bug

Changed cbi sections to relative positioning instead of static (this should be fine, and is needed to set stacking orders)

Added stacking orders to all the sections so dropdowns won't render underneath stuff anymore.

luasrc/gaya/gaya.css

@@ -654,6 +654,7 @@ label {
   
   .cbi-map {
     margin-top: 10px;
+    position: relative;
   }
   
   #cbi-shadowsocksr .cbi-map-descr {
@@ -1007,11 +1008,28 @@ strong {
     border-radius: 20px;
     backdrop-filter: blur(20px);
     -webkit-backdrop-filter: blur(20px);
+    position: relative;
   }
   .cbi-modal .cbi-section,
   .cbi-section .cbi-section {
 
   }
+  .cbi-section:nth-of-type(1) {
+      z-index: 4; /* the first section will be on top */
+  }
+
+  .cbi-section:nth-of-type(2) {
+      z-index: 3; 
+  }
+
+  .cbi-section:nth-of-type(3) {
+      z-index: 2;
+  }
+
+  .cbi-section:nth-of-type(4) {
+      z-index: 1; /* the last section will be at the bottom */
+  }
+
   .cbi-modal .cbi-tabmenu {
     margin-left: 0;
   }
@@ -1794,7 +1812,6 @@ strong {
     animation: anim-rotate 2s infinite cubic-bezier(0.18, 0.89, 0.32, 1.28);
     background: url(./icons/spinner16.svg) no-repeat center;
   }
-  }
   .left,
   .left::before {
     text-align: left !important;