chore: add new templates

Added more information on how to fill the .env file

.env.example

@@ -1,30 +1,35 @@
 
 # Firebase
 ## Private
+### Templates for Documents.
+NEXT_PUBLIC_MATH_TEMPLATE_DOC_ID="" # Document ID under the collection "documents"
+
 ### Authorization
-AUTH_SECRET=""
+AUTH_SECRET="" # You can use the CLI to generate an auth secret: `pnpm exec auth secret`
 
-### Admin Credentials
-FIREBASE_PROJECT_ID=""
+### Admin Credentials. You can get this from the Firebase Project Settings.
+FIREBASE_PROJECT_ID="" 
 FIREBASE_CLIENT_EMAIL=""
 FIREBASE_PRIVATE_KEY=""
 
-### Google Auth Login
+### Google Auth Login. You can get this from the Google Developer Console.
 AUTH_GOOGLE_ID=""
 AUTH_GOOGLE_SECRET=""
 
-## Github Auth Login
+## Github Auth Login. You can get this from the Github Developer Settings.
 AUTH_GITHUB_ID=""
-AUTH_GITHUB_SECRET=""
+AUTH_GITHUB_SECRET="" 
 
 ### Roblox Related
-ROBLOX_COOKIE=""
+ROBLOX_COOKIE=""  # You can get this from the browser cookies. Only required for devproduct forwarding.
 
 # Public
-NEXT_PUBLIC_FIREBASE_API_KEY=""
-NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN=""
-NEXT_PUBLIC_FIREBASE_PROJECT_ID=""
-NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET=""
-NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID=""
-NEXT_PUBLIC_FIREBASE_APP_ID=""
-NEXT_PUBLIC_FIREBASE_MEASUREMENT_ID=""
+NEXT_PUBLIC_FIREBASE_API_KEY="" # Firebase API Key
+NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN="" # Firebase Auth Domain
+NEXT_PUBLIC_FIREBASE_PROJECT_ID="" # Firebase Project ID
+NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET="" # Firebase Storage Bucket
+NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID="" # Firebase Messaging Sender ID
+NEXT_PUBLIC_FIREBASE_APP_ID="" # Firebase App ID
+NEXT_PUBLIC_FIREBASE_MEASUREMENT_ID="" # Firebase Measurement ID
+
+NEXT_PUBLIC_ANALYTICS_ID="" # Google Analytics ID

src/app/layout.tsx

@@ -103,7 +103,11 @@ export default function RootLayout({
           <Toaster />
         </ThemeProvider>
       </body>
-      <GoogleAnalytics gaId="G-ZNSHY2T64H" />
+      {/* Google Analytics */}
+      {process.env.NODE_ENV === "production" &&
+        process.env.NEXT_PUBLIC_ANALYTICS_ID && (
+          <GoogleAnalytics gaId={process.env.NEXT_PUBLIC_ANALYTICS_ID} />
+        )}
     </html>
   )
 }