[Feature request] Add an advertisement filter

[NEDOSTUPN0]

I think it would be cool to see an ad filter that hides all posts that contain a certain text or hashtag. You also need to add a setting that will allow you to specify a specific text that will be used to detect an advertising message, because in all telegram channels it is different. Here is an example of an implemented advertising filter for telegram web https://github.com/VChet/telegram-ad-filter . English is not my native language, so forgive me in case of anything