Add isConfigured to application registration in App admin panel (#20326)

## After
Added "Configured" column in admin panel apps tab
<img width="1171" height="611" alt="image"
src="https://github.com/user-attachments/assets/e6850b39-5789-4ad2-b3df-192a28cb03e2"
/>

Add a banner to ask to configure the application 
<img width="1218" height="483" alt="image"
src="https://github.com/user-attachments/assets/1491363c-3479-41ca-97b7-c7dc9e07ff16"
/>

packages/twenty-server/src/engine/core-modules/admin-panel/admin-panel-application-registration.resolver.ts

@@ -0,0 +1,18 @@
+import { Context, Parent, ResolveField } from '@nestjs/graphql';
+
+import { AdminResolver } from 'src/engine/api/graphql/graphql-config/decorators/admin-resolver.decorator';
+import { ApplicationRegistrationEntity } from 'src/engine/core-modules/application/application-registration/application-registration.entity';
+import { type IDataloaders } from 'src/engine/dataloaders/dataloader.interface';
+
+@AdminResolver(() => ApplicationRegistrationEntity)
+export class AdminPanelApplicationRegistrationResolver {
+  @ResolveField(() => Boolean)
+  async isConfigured(
+    @Parent() registration: ApplicationRegistrationEntity,
+    @Context() context: { loaders: IDataloaders },
+  ): Promise<boolean> {
+    return context.loaders.isConfiguredLoader.load({
+      applicationRegistrationId: registration.id,
+    });
+  }
+}

packages/twenty-server/src/engine/core-modules/admin-panel/admin-panel.module.ts

@@ -2,6 +2,7 @@ import { Module } from '@nestjs/common';
 import { TerminusModule } from '@nestjs/terminus';
 import { TypeOrmModule } from '@nestjs/typeorm';
 
+import { AdminPanelApplicationRegistrationResolver } from 'src/engine/core-modules/admin-panel/admin-panel-application-registration.resolver';
 import { AdminPanelHealthService } from 'src/engine/core-modules/admin-panel/admin-panel-health.service';
 import { AdminPanelQueueService } from 'src/engine/core-modules/admin-panel/admin-panel-queue.service';
 import { AdminPanelResolver } from 'src/engine/core-modules/admin-panel/admin-panel.resolver';
@@ -78,6 +79,7 @@ import { PermissionsModule } from 'src/engine/metadata-modules/permissions/permi
   ],
   providers: [
     AdminPanelResolver,
+    AdminPanelApplicationRegistrationResolver,
     AdminPanelUserLookupService,
     AdminPanelStatisticsService,
     AdminPanelBillingService,