Append NEXT_PUBLIC before env vars

1. We need to append this to access it in the frontend. These are not
    secret keys, so it's fine to expose them in the frontend.
2. Also clean up some console logs.

frontend/templates/troubleshooting/components/TagManager.tsx

@@ -35,25 +35,24 @@ function GoogleNoScript() {
 }
 
 function MatomoScript() {
-   console.log('matomo script');
    const params = new URLSearchParams();
    const environment = params.get(GET_PARAM) || DEFAULT_ENV;
 
    const configUrl = (function () {
       switch (environment) {
          case 'Live':
-            return process.env.MATOMO_TAG_MANAGER_CONTAINER_URL_LIVE;
+            return process.env
+               .NEXT_PUBLIC_MATOMO_TAG_MANAGER_CONTAINER_URL_LIVE;
          case 'Staging':
-            return process.env.MATOMO_TAG_MANAGER_CONTAINER_URL_STAGING;
+            return process.env
+               .NEXT_PUBLIC_MATOMO_TAG_MANAGER_CONTAINER_URL_STAGING;
          case 'Dev':
-            return process.env.MATOMO_TAG_MANAGER_CONTAINER_URL_DEV;
+            return process.env.NEXT_PUBLIC_MATOMO_TAG_MANAGER_CONTAINER_URL_DEV;
          default:
             throw new Error(`Unknown environment: ${environment}`);
       }
    })();
 
-   console.log(`Matomo script: ${configUrl}`);
-
    const scriptTag = `
         var c = "${configUrl}";
 

frontend/templates/troubleshooting/index.tsx

@@ -81,7 +81,8 @@ const Wiki: NextPageWithLayout<{
    );
 
    console.log(
-      'matomo live url: ' + process.env.MATOMO_TAG_MANAGER_CONTAINER_URL_LIVE
+      'matomo live url: ' +
+         process.env.NEXT_PUBLIC_MATOMO_TAG_MANAGER_CONTAINER_URL_LIVE
    );
 
    return (