Merge pull request 'Reserve mine/unlock/guess/f custom slugs' (#247) from fix-reserved-slugs into dev

internal/store/customslug.go

@@ -13,6 +13,7 @@ var reservedSlugs = map[string]bool{
 	"api": true, "raw": true, "can": true, "cans": true, "public": true,
 	"history": true, "static": true, "assets": true, "favicon.ico": true,
 	"new": true, "login": true, "logout": true, "admin": true, "settings": true,
+	"mine": true, "unlock": true, "guess": true, "f": true,
 }
 
 var ErrInvalidSlug = errors.New("custom slug must be 1-64 chars: letters, digits, dash, underscore; must start with letter or digit")