The described behavior is specific to the iOS web view behavior when the keyboard is shown. You can reproduce it without any Kendo UI components defined in the page, as it is common for all Cordova-based applications.
Some workarounds are discussed on the internet but if decide to use one, you would need to try and choose based on your specific scenario. The most common suggestions are discussed here:
How to prevent keyboard push up webview at iOS app using phonegap