add linkedin handles

[tusharshah21]

Summary

Adds LinkedIn handle support to frontend profiles using the same flow as existing social profile fields.

Changes

• Added linkedin_account support to frontend profile/API types.
• Added LinkedIn Handle field in create/edit profile dialogs and sent it in payloads.
• Mapped linkedin_account from backend responses through profile list/page components.
• Displayed LinkedIn handle on profile header with link to https://www.linkedin.com/in/{handle}.

Closes #182

[joelamouche]

It would be nice to have a nicer error display ux for this case

BTW it seems the format is a bit off because typically here we want to include an url right? https://www.linkedin.com/in/antoine-estienne-4b633985/ doesn't fit in the regexp you set in the backend.

Also a strange thing that happened is that I tried creating anew profile and it registered under the wrong address. (this isnt an issue in prod)

Also I got this weird error when I try to edit (it is taken by myself, might be related to previous error.

Do you get the same error locally?

[tusharshah21]

taking a look into it , lol I totally forgot the case, coz mine was simle fullname, what works best? sharing the entire link ?
going in depth a little to cater it !

[joelamouche]

Full name is not gonna work as there are potentially a lot of duplicates. Yes pls include full url as it seems to be the standard in HR websites.

[tusharshah21]

works now! Can you check it on ur device now!

[joelamouche]

I get this error