Fixing various bugs in the grammar

js/entity/Integer64Entity.js

@@ -14,9 +14,10 @@ export default class Integer64Entity extends IEntity {
         this.cleanupAttributes(this.attributes)
     }
 
+    /** @param {BigInt | Number} value */
     constructor(value = 0) {
         super(value)
-        /** @type {Number} */ this.value
+        /** @type {BigInt | Number} */ this.value
     }
 
     valueOf() {