[web] introduce CreateFarcasterChannelTagModal

Summary:
This diff introduces a new modal component called CreateFarcasterChannelTagModal. CreateFarcasterChannelTagModal handles the user flow of creating a farcaster channel tag based on the farcaster channels you are following. Once the tag is successfully created then the modal will close and return the user to the TagFarcasterChannelModal modal

Depends on D12534

Test Plan:
Please see the demo video below

Reviewers: inka, kamil, ashoat

Reviewed By: inka, ashoat

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D12566