Added uuid parameter to data link

In tandem with this [issue](https://github.com/Alys/tools-for-habitrpg/issues/11) & [pr](https://github.com/Alys/tools-for-habitrpg/pull/12) on @Alys 's [user data tool](https://github.com/Alys/tools-for-habitrpg).

Allows the date link to autofill the UUID input on user data page.