Fix duration saying never when it's unlimited

internal/server/admin.go

@@ -159,7 +159,7 @@ func (s *Server) adminTokens() []adminToken {
 		out = append(out, adminToken{
 			Name:      t.Name,
 			MaxSize:   config.FormatSize(l.MaxSize),
-			MaxExpiry: config.FormatDuration(l.MaxExpiry),
+			MaxExpiry: config.FormatLifetime(l.MaxExpiry),
 			Vanity:    l.AllowVanity,
 			Admin:     l.Admin,
 		})

internal/server/login.go

@@ -45,7 +45,7 @@ func (s *Server) handleLoginPage(w http.ResponseWriter, r *http.Request) {
 			page:      s.page(r, "Log in", false),
 			Next:      next,
 			MaxSize:   config.FormatSize(lim.MaxSize),
-			MaxExpiry: config.FormatDuration(lim.MaxExpiry),
+			MaxExpiry: config.FormatLifetime(lim.MaxExpiry),
 			Vanity:    lim.AllowVanity,
 		})
 		return

internal/server/pages.go

@@ -69,8 +69,8 @@ func (s *Server) handleIndex(w http.ResponseWriter, r *http.Request) {
 	s.render(w, http.StatusOK, "index.html", indexPage{
 		page:          s.page(r, "Upload", true),
 		MaxSize:       config.FormatSize(lim.MaxSize),
-		MaxExpiry:     config.FormatDuration(lim.MaxExpiry),
-		DefaultExpiry: config.FormatDuration(lim.DefaultExpiry),
+		MaxExpiry:     config.FormatLifetime(lim.MaxExpiry),
+		DefaultExpiry: config.FormatLifetime(lim.DefaultExpiry),
 		AbsBase:       s.absBase(r),
 		AllowVanity:   lim.AllowVanity,
 		MaxSizeBytes:  lim.MaxSize,