Add tag to templates

[pierre-H]

It would be very useful to add tags to templates. This would improve the search of templates.
For example, if I search "auth", I will have Authentik and Supertokens, but not Logto.
Dokploy has that : https://templates.dokploy.com/ but doesn't include tags in the search ("auth" search doesn't display Logto for them too).