add balance,donate,admindonate commands and minor bugfixes

bot/lib/changeBalance.ts

@@ -0,0 +1,10 @@
+import { updateUserRecord } from "../db/dbUser";
+import { type userRecord } from "../db/connection";
+import { User } from "../user";
+
+export async function changeBalance(user: User, userRecord: userRecord, amount: number): Promise<false | userRecord> {
+  userRecord.balance = userRecord.balance += amount;
+  if (userRecord.balance < 0) return false;
+  await updateUserRecord(user, userRecord);
+  return userRecord;
+};