feat: add molang package

1. upgrade bukkit chat
2. fix config update error

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

packages/molang/src/parser/expressions/string.ts

@@ -0,0 +1,26 @@
+import { Expression } from '../expression'
+
+export class StringExpression extends Expression {
+	type = 'StringExpression'
+
+	constructor(protected name: string) {
+		super()
+	}
+
+	get allExpressions() {
+		return []
+	}
+	setExpressionAt() {}
+
+	isStatic() {
+		return true
+	}
+
+	eval() {
+		return this.name.substring(1, this.name.length - 1)
+	}
+
+	toString() {
+		return this.name
+	}
+}