fix: lint for sample code

src/pages/understand-stacks/managing-accounts.md

@@ -79,7 +79,7 @@ const accounts = new AccountsApi(apiConfig);
 
 async function getAccountInfo() {
   const accountInfo = await accounts.getAccountInfo({
-    principal: stacksAddress
+    principal: stacksAddress,
   });
 
   return accountInfo;
@@ -113,7 +113,7 @@ async function getAccountInfoWithoutProof() {
   });
 
   return accountInfo;
-};
+}
 ```
 
 ## Step 4: Reviewing account history
@@ -129,7 +129,7 @@ async function runFaucetStx() {
   });
 
   return faucetTx;
-};
+}
 ```
 
 The API will respond with a new transaction ID and confirmation that the faucet run was successful: