feat(*): allow to select auth providers + add multiworkspace with subdomain management (#8656)

## Summary
Add support for multi-workspace feature and adjust configurations and
states accordingly.
- Introduced new state isMultiWorkspaceEnabledState.
- Updated ClientConfigProviderEffect component to handle
multi-workspace.
- Modified GraphQL schema and queries to include multi-workspace related
configurations.
- Adjusted server environment variables and their respective
documentation to support multi-workspace toggle.
- Updated server-side logic to handle new multi-workspace configurations
and conditions.

packages/twenty-server/src/utils/workspace-url.util.ts

@@ -0,0 +1,33 @@
+import { isDefined } from 'src/utils/is-defined';
+
+export const buildWorkspaceURL = (
+  baseUrl: string,
+  subdomain: string | null,
+  {
+    withPathname,
+    withSearchParams,
+  }: {
+    withPathname?: string;
+    withSearchParams?: Record<string, string | number>;
+  } = {},
+) => {
+  const url = new URL(baseUrl);
+
+  if (subdomain && subdomain.length > 0) {
+    url.hostname = subdomain + '.' + url.hostname;
+  }
+
+  if (withPathname) {
+    url.pathname = withPathname;
+  }
+
+  if (withSearchParams) {
+    Object.entries(withSearchParams).forEach(([key, value]) => {
+      if (isDefined(value)) {
+        url.searchParams.set(key, value.toString());
+      }
+    });
+  }
+
+  return url;
+};