Add LeetCode 1684. Count the Number of Consistent Strings

[Tahanima]

Problem Link

[renato04]

Hello!
I'd like to do that

[aniket-24]

Please assign me this issue!

[Tahanima]

Assigned the issue to @renato04
@aniket-24, you can claim the issue again if you have a different solution than @renato04 or your solution is in a different programming language