New preview site (#2036)

* Changes to DE preview site to support managed identity. Changes to
infrastructure to use new preview site.

* Fix formatting.

* Potential fix for code scanning alert no. 56: Server-side request forgery

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

* Use different secrets for subscription/tenant/client id's.

* Revert new id names.

* Update Az CLI config.

* Update to Node 18 and update security vulnerable dependencies.

---------

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

src/ConfigContext.ts

@@ -91,7 +91,7 @@ let configContext: Readonly<ConfigContext> = {
     `^https:\\/\\/.*\\.analysis-df\\.net$`,
     `^https:\\/\\/.*\\.analysis-df\\.windows\\.net$`,
     `^https:\\/\\/.*\\.azure-test\\.net$`,
-    `^https:\\/\\/cosmos-explorer-preview\\.azurewebsites\\.net$`,
+    `^https:\\/\\/dataexplorer-preview\\.azurewebsites\\.net$`,
   ], // Webpack injects this at build time
   gitSha: process.env.GIT_SHA,
   hostedExplorerURL: "https://cosmos.azure.com/",

src/Utils/EndpointUtils.ts

@@ -141,9 +141,7 @@ export const allowedArcadiaEndpoints: ReadonlyArray<string> = ["https://workspac
 
 export const allowedHostedExplorerEndpoints: ReadonlyArray<string> = ["https://cosmos.azure.com/"];
 
-export const allowedMsalRedirectEndpoints: ReadonlyArray<string> = [
-  "https://cosmos-explorer-preview.azurewebsites.net/",
-];
+export const allowedMsalRedirectEndpoints: ReadonlyArray<string> = ["https://dataexplorer-preview.azurewebsites.net/"];
 
 export const allowedJunoOrigins: ReadonlyArray<string> = [
   JunoEndpoints.Test,