feat: add molang package

1. upgrade bukkit chat
2. fix config update error

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/molang/src/parser/parselets/arrayAccess.ts

@@ -0,0 +1,22 @@
+import { Token } from '../../tokenizer/token'
+import { Parser } from '../parse'
+import { IInfixParselet } from './infix'
+import { IExpression } from '../expression'
+import { ArrayAccessExpression } from '../expressions/arrayAccess'
+
+export class ArrayAccessParselet implements IInfixParselet {
+	constructor(public precedence = 0) {}
+
+	parse(parser: Parser, left: IExpression, token: Token) {
+		const expr = parser.parseExpression(this.precedence - 1)
+
+		if (!left.setPointer) throw new Error(`"${left.type}" is not an array`)
+
+		if (!parser.match('ARRAY_RIGHT'))
+			throw new Error(
+				`No closing bracket for opening bracket "[${expr.eval()}"`
+			)
+
+		return new ArrayAccessExpression(left, expr)
+	}
+}