refactor(login): add config file for static keycloak urls

deadlock-plugins/deadlock-extension/src/config.ts

+export const KEYCLOAK_DEVICE_AUTH_URL =
+	'https://auth.dev.deadlock.io/auth/realms/Deadlock/protocol/openid-connect/auth/device';
+export const KEYCLOAK_TOKEN_CREATE_URL =
+	'https://auth.dev.deadlock.io/auth/realms/Deadlock/protocol/openid-connect/token';
+export const KEYCLOAK_USER_INFO_URL =
+	'https://auth.dev.deadlock.io/auth/realms/Deadlock/protocol/openid-connect/userinfo';

deadlock-plugins/deadlock-extension/src/core/controller.ts

 import * as vscode from 'vscode';
+import { KEYCLOAK_DEVICE_AUTH_URL, KEYCLOAK_TOKEN_CREATE_URL, KEYCLOAK_USER_INFO_URL } from '../config';
 import { OPEN_GETTING_STARTED_COMMAND } from '../theia/command';
 import BriefingView from '../view/briefingView';
 import GettingStartedView from '../view/gettingStartedView';
@@ -16,9 +17,9 @@ export default class Controller {
 		this.gettingStartedView = new GettingStartedView(context.extensionUri);
 		this.commandHandler = new CommandHandler(this);
 		this.connection = new KeycloakOAuth2DeviceFlowConnection(
-			'https://auth.dev.deadlock.io/auth/realms/Deadlock/protocol/openid-connect/auth/device',
-			'https://auth.dev.deadlock.io/auth/realms/Deadlock/protocol/openid-connect/token',
-			'https://auth.dev.deadlock.io/auth/realms/Deadlock/protocol/openid-connect/userinfo',
+			KEYCLOAK_DEVICE_AUTH_URL,
+			KEYCLOAK_TOKEN_CREATE_URL,
+			KEYCLOAK_USER_INFO_URL,
 		);
 
 		this.init();