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

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

src/Explorer/Panes/AddCollectionPanel/AddCollectionPanel.tsx

@@ -853,7 +853,7 @@ export class AddCollectionPanel extends React.Component<AddCollectionPanelProps,
 
               {!isSynapseLinkEnabled() && (
                 <Stack className="panelGroupSpacing">
-                  <Text variant="small">
+                  <Text variant="small" style={{ color: "var(--colorNeutralForeground1)" }}>
                     Azure Synapse Link is required for creating an analytical store{" "}
                     {getCollectionName().toLocaleLowerCase()}. Enable Synapse Link for this Cosmos DB account. <br />
                     <Link