Revert "health check fix and undo babel change, ugh"

This reverts commit 2620a3e.

app/clientHealthCheck.ts

@@ -6,7 +6,7 @@ async function runCheck() {
     '/api/client-health-check?' +
     new URLSearchParams({
       buildId: process.env.BUILD_ID || '',
-      commitSHA: process.env.NEXT_PUBLIC_VERCEL_GIT_COMMIT_SHA || '',
+      commitSHA: process.env.NEXT_PUBLIC_VERCEL_GITHUB_COMMIT_SHA || '',
     });
   const response = await fetch(url);
   const data = await response.text();
@@ -21,10 +21,6 @@ async function runCheck() {
   // tell the App to do a hard navigation at the next opportunity.
 }
 
-let checkIntervalId: NodeJS.Timeout;
 export default function clientHealthCheck() {
-  if (checkIntervalId) {
-    clearInterval(checkIntervalId);
-  }
-  checkIntervalId = setInterval(runCheck, 5 * 60 * 1000 /* every 5 min */);
+  setInterval(runCheck, 5 * 60 * 1000 /* every 5 min */);
 }

for-i18n-later-babel.config.json

@@ -0,0 +1,13 @@
+{
+  "presets": ["next/babel"],
+  "plugins": [
+    [
+      "formatjs",
+      {
+        "idInterpolationPattern": "[md5:contenthash:hex:10]",
+        "additionalComponentNames": ["F"],
+        "ast": true
+      }
+    ]
+  ]
+}

next.config.js

@@ -96,9 +96,7 @@ const nextConfig = {
     config.plugins.push(
       new webpack.DefinePlugin({
         'process.env.BUILD_ID': JSON.stringify(buildId),
-        'process.env.NEXT_PUBLIC_VERCEL_GIT_COMMIT_SHA': JSON.stringify(
-          process.env.VERCEL_GIT_COMMIT_SHA || '-missing-'
-        ),
+        'process.env.NEXT_PUBLIC_VERCEL_GITHUB_COMMIT_SHA': process.env.VERCEL_GITHUB_COMMIT_SHA,
       })
     );