Missing method: Ext.Component.setHhtml() in Ext.JS 6.2 aincl. and lower

Method is missing in Sencha GPL code, it's necessary to fix it by manual generating:
```
...
class Component extends Ext.Base {
	...
	setHtml? (htmlOrData: string | object, loadScripts?: boolean, callback?: Function, scriptScope?: object): void;
	...
}
...
```