update regex to support x formerly twitter urls

[vishalvivekm]

Description

This PR fixes #5477

Notes for Reviewers

Signed commits

• [ ] Yes, I signed my commits.

[l5io]

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[vishalvivekm]

@Yashsharma1911

After the renaming of Twitter to X, the profile links now start with ‘x.com’ when you try to enter that in the form, it shows invalid.

As this mentioned bug will result in newcomers filling out the form without entering their Twitter profile, I'm merging this fix rn. About https://github.com/layer5io/layer5/issues/5477#issue-2223819700:

The profile picture component is a text input and should be changed to an upload component.

This will need us to make some changes here and there in our flows.

[Yashsharma1911]

Thankyou @vishalvivekm