feat(config): make roots config key optional to avoid unnecessary startup requirements

Author: EstoesMoises

plugins/search-backend-module-stack-overflow-teams-collator/config.d.ts

@@ -18,7 +18,7 @@ export interface Config {
     /**
      * Configuration options for the stack overflow plugin
      */
-    stackoverflow: {
+    stackoverflow?: {
       /**
        * The base url of the Stack Overflow API used for the plugin, if no BaseUrl is provided it will default to https://api.stackoverflowteams.com
        */

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

@@ -20,7 +20,7 @@ export interface Config {
      * 
      * This configuration is shared with the backstage-plugin-stack-overflow-teams-backend and backstage-stack-overflow-teams-collator
      */
-    stackoverflow: {
+    stackoverflow?: {
       /**
        * The base url of the Stack Overflow API used for the plugin
        */

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

@@ -20,7 +20,7 @@ export interface Config {
      * 
      * This configuration is shared with the backstage-plugin-stack-overflow-teams-backend and backstage-stack-overflow-teams-collator
      */
-    stackoverflow: {
+    stackoverflow?: {
       /**
        * The base url of the Stack Overflow API used for the plugin
        */