Copy jobs dark theme (#2308)

* added a dark theme toggle button on Copyjobs next to refresh button and covered full feature

* Fix formatting in Utils.test.ts

* updated infor icon , error icon and text on jobs details page

* rebased from master

* updated the conflicts

* updated the conflicts

* fixed the test suit

* fixed review comments

* test fix

---------

Co-authored-by: Sakshi Gupta <sakshig@microsoft.com>

src/Common/LoadingOverlay.tsx

@@ -1,4 +1,5 @@
 import { Overlay, Spinner, SpinnerSize } from "@fluentui/react";
+import { useThemeStore } from "hooks/useTheme";
 import React from "react";
 
 interface LoadingOverlayProps {
@@ -7,6 +8,7 @@ interface LoadingOverlayProps {
 }
 
 const LoadingOverlay: React.FC<LoadingOverlayProps> = ({ isLoading, label }) => {
+  const isDarkMode = useThemeStore((state) => state.isDarkMode);
   if (!isLoading) {
     return null;
   }
@@ -16,7 +18,7 @@ const LoadingOverlay: React.FC<LoadingOverlayProps> = ({ isLoading, label }) =>
       data-test="loading-overlay"
       styles={{
         root: {
-          backgroundColor: "rgba(255,255,255,0.9)",
+          backgroundColor: isDarkMode ? "rgba(32, 31, 30, 0.9)" : "rgba(255,255,255,0.9)",
           zIndex: 9999,
           display: "flex",
           alignItems: "center",
@@ -24,7 +26,11 @@ const LoadingOverlay: React.FC<LoadingOverlayProps> = ({ isLoading, label }) =>
         },
       }}
     >
-      <Spinner size={SpinnerSize.large} label={label} styles={{ label: { fontWeight: 600 } }} />
+      <Spinner
+        size={SpinnerSize.large}
+        label={label}
+        styles={{ label: { fontWeight: 600, color: isDarkMode ? "#ffffff" : "#323130" } }}
+      />
     </Overlay>
   );
 };