Ability to search videos within the specific channel

[skyGtm]

Checklist

• I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• This issue contains only one feature request. I will open one issue for every feature I want to request.

Describe the feature you want

Ability to search videos within the specific channel.
I currently, for above mentioned task, use web version of Youtube, search the video on the desired Youtube Channel and copy link, paste url in NewPipe and watch; which I think is tedious task.

Is your feature request related to a problem? Please describe it

Generally, I prefer the videos on some topics from my favorite youtubers only. So, it is tedious to just scroll down the videos list to search videos on specific topic.
And using search 'keyword + channel name' (Example: router LinusTechTips) don't always provides desired results.

Additional context

There is similar issue, which is for subscription list only #4795
Screenshot of web version of Youtube with channel specific search.

How will you/everyone benefit from this feature?

I think, it will help most of users from searching videos on specific topic from their favorite youtubers

[triallax]

Related: #110.

[tiwarys]

Duplicate of #2414

[triallax]

@shivasagarrao you're not wrong, but I'd prefer to keep this one open, as that one requests multiple features.

[arncor]

I would love to see that feature as well ;)