style: format code with Autopep8, Black, ClangFormat, dotnet-format, …

…Go fmt, Gofumpt, Google Java Format, isort, Ktlint, PHP CS Fixer, Prettier, RuboCop, Ruff Formatter, Rustfmt, Scalafmt, StandardJS, StandardRB, swift-format and Yapf

This commit fixes the style issues introduced in 2c80799 according to the output
from Autopep8, Black, ClangFormat, dotnet-format, Go fmt, Gofumpt, Google Java
Format, isort, Ktlint, PHP CS Fixer, Prettier, RuboCop, Ruff Formatter, Rustfmt,
Scalafmt, StandardJS, StandardRB, swift-format and Yapf.

Details: None

src/controllers/transfers.js

@@ -1,31 +1,31 @@
-const Transfer = require("../models/transfer");
-const Account = require("../models/account");
+const Transfer = require('../models/transfer')
+const Account = require('../models/account')
 
 exports.create = async (req, res) => {
-  const senderAccount = await Account.findById(req.body.sender_account_id);
-  const receiverAccount = await Account.findById(req.body.receiver_account_id);
+  const senderAccount = await Account.findById(req.body.sender_account_id)
+  const receiverAccount = await Account.findById(req.body.receiver_account_id)
 
   if (!senderAccount || !receiverAccount) {
-    return res.status(400).json({ message: "Account not found" });
+    return res.status(400).json({ message: 'Account not found' })
   }
 
   if (senderAccount.balance < req.body.amount) {
-    return res.status(400).json({ message: "Insufficient balance" });
+    return res.status(400).json({ message: 'Insufficient balance' })
   }
 
   const transfer = new Transfer({
     sender_account_id: req.body.sender_account_id,
     receiver_account_id: req.body.receiver_account_id,
-    amount: req.body.amount,
-  });
+    amount: req.body.amount
+  })
 
-  await transfer.save();
+  await transfer.save()
 
-  senderAccount.balance -= req.body.amount;
-  receiverAccount.balance += req.body.amount;
+  senderAccount.balance -= req.body.amount
+  receiverAccount.balance += req.body.amount
 
-  await senderAccount.save();
-  await receiverAccount.save();
+  await senderAccount.save()
+  await receiverAccount.save()
 
-  res.json({ message: "Transfer successful", transfer });
-};
+  res.json({ message: 'Transfer successful', transfer })
+}