[INTERNAL] CacheMode: Update JSDoc

Author: RandomByte

lib/ui5Framework/maven/CacheMode.js

@@ -7,8 +7,8 @@
  * @readonly
  * @enum {string}
  * @property {string} Default Cache everything, invalidate after 9 hours
- * @property {string} Force Use cache only
- * @property {string} Off Do not use the cache
+ * @property {string} Force Use cache only. Do not send any requests to the repository
+ * @property {string} Off Invalidate the cache and update from the repository
  * @module @ui5/project/ui5Framework/maven/CacheMode
  */
 export default {