fix(site): use search params for model edit/add navigation (#23277)

site/src/api/api.ts

@@ -626,6 +626,13 @@ class ApiMethods {
 		return response.data;
 	};
 
+	getUser = async (userIdOrName: string): Promise<TypesGen.User> => {
+		const response = await this.axios.get<TypesGen.User>(
+			`/api/v2/users/${encodeURIComponent(userIdOrName)}`,
+		);
+		return response.data;
+	};
+
 	/**
 	 * Get users for workspace owner selection. Requires
 	 * permission to create workspaces for other users in the