Add support for Facebook

[kaifcodec]

Add username validation for Facebook in social/ category.

[Ronak501]

I am currently working on this issue.
I will update soon with progress.

import re

def is_valid_facebook_username(username):
    if not (5 <= len(username) <= 50):
        return False
    if not re.match(r'^[A-Za-z0-9\.]+$', username):
        return False
    if username.startswith('.') or username.endswith('.'):
        return False
    if '..' in username:
        return False
    return True

[kaifcodec]

Nice!
@Ronak501 Thanks for picking this up.
The initial validation looks good.
Feel free to push your implementation whenever it’s ready.

[kaifcodec]

@Ronak501 Are you still working on this or should I assign it to someone else?

[Ronak501]

@kaifcodec , Could you please assign this task to someone else? I'm currently busy with exams. Once the validation is completed, I’ll create the PR.

[kaifcodec]

@Ronak501 That's perfectly fine.

[Ronak501]

@kaifcodec , i created PR; check it

[ali-m07]

Hi! I'd like to add Facebook username validation support. Can I be assigned to this issue?