Add link to spacescan for TAIL search

[danieljperry]

SpaceScan now supports searching for TAILs, similar to TAIL Database.
Can we get a second link added to the MANAGE TOKEN LIST section of the Tokens panel of the GUI? Currently, there is only Search on Tail Database.

For example the equivalent links for the Chia Holiday 2021 token are:
https://www.taildatabase.com/tail/509deafe3cd8bbfbb9ccce1d930e3d7b57b40c964fa33379b18d628175eb7a8f
https://www.spacescan.io/cat2/509deafe3cd8bbfbb9ccce1d930e3d7b57b40c964fa33379b18d628175eb7a8f

[BrandtH22]

@danieljperry , note I transferred this enhancement request to the GUI repo for better visibility 👍