Enforce system wide sso providers (#9058)

We have recently introduced the possibility to specify workspace
specific auth providers.
I'm:
- introducing system wide auth providers (provided by clientConfig)
- making sure workspace specific auth providers belong to system wide
auth providers set

packages/twenty-server/src/engine/core-modules/domain-manager/service/domain-manager.service.ts

@@ -23,19 +23,24 @@ export class DomainManagerService {
 
   getFrontUrl() {
     let baseUrl: URL;
+    const frontPort = this.environmentService.get('FRONT_PORT');
+    const frontDomain = this.environmentService.get('FRONT_DOMAIN');
+    const frontProtocol = this.environmentService.get('FRONT_PROTOCOL');
 
-    if (!this.environmentService.get('FRONT_DOMAIN')) {
-      baseUrl = new URL(this.environmentService.get('SERVER_URL'));
+    const serverUrl = this.environmentService.get('SERVER_URL');
+
+    if (!frontDomain) {
+      baseUrl = new URL(serverUrl);
     } else {
-      baseUrl = new URL(
-        `${this.environmentService.get('FRONT_PROTOCOL')}://${this.environmentService.get('FRONT_DOMAIN')}`,
-      );
+      baseUrl = new URL(`${frontProtocol}://${frontDomain}`);
+    }
 
-      const port = this.environmentService.get('FRONT_PORT');
+    if (frontPort) {
+      baseUrl.port = frontPort.toString();
+    }
 
-      if (port) {
-        baseUrl.port = port.toString();
-      }
+    if (frontProtocol) {
+      baseUrl.protocol = frontProtocol;
     }
 
     return baseUrl;