update config to be optional

Signed-off-by: Emma Indal <emma.indahl@gmail.com>

plugins/stack-overflow-backend/config.d.ts

@@ -18,11 +18,11 @@ export interface Config {
   /**
    * Configuration options for the stack overflow plugin
    */
-  stackoverflow: {
+  stackoverflow?: {
     /**
      * The base url of the Stack Overflow API used for the plugin
      * @visibility backend
      */
-    baseUrl: string;
+    baseUrl?: string;
   };
 }

plugins/stack-overflow/config.d.ts

@@ -18,11 +18,11 @@ export interface Config {
   /**
    * Configuration options for the stack overflow plugin
    */
-  stackoverflow: {
+  stackoverflow?: {
     /**
      * The base url of the Stack Overflow API used for the plugin
      * @visibility frontend
      */
-    baseUrl: string;
+    baseUrl?: string;
   };
 }