Refactor Container Copy Permissions Screen: Group-based Validation and Improved Loading UX (#2269)

* grouped permissions and added styles

* Adding loading overlay for the permission sections

src/Explorer/ContainerCopy/containerCopyStyles.less

@@ -19,6 +19,10 @@
 .createCopyJobScreensContainer {
   height: 100%;
   padding: 1em 1.5em;
+
+  .pointInTimeRestoreContainer, .onlineCopyContainer {
+    position: relative;
+  }
   
   label {
     padding: 0;
@@ -59,6 +63,7 @@
     }
   }
   .popover-container {
+    border-radius: 6px;
     button[disabled] {
       cursor: not-allowed;
       opacity: 0.8;
@@ -66,7 +71,7 @@
   }
   .foreground {
     z-index: 10;
-    background-color: white;
+    background-color: #f9f9f9;
     padding: 20px;
     box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
     transform: translate(0%, -9%);
@@ -89,6 +94,10 @@
   .panelFormWrapper .panelMainContent {
     padding: 0;
   }
+
+  .createCopyJobScreensFooter {
+    margin-top: 50px;
+  }
 }
 
 .monitorCopyJobs {