disable button for currently shown skill

skill.go

@@ -103,7 +103,11 @@ func RenderSkill(id horse.SkillID, all map[horse.SkillID]horse.Skill, groups map
 	if len(rel) > 1 {
 		buttons := make([]discord.InteractiveComponent, 0, 4)
 		for _, rs := range rel {
-			buttons = append(buttons, discord.NewButton(discord.ButtonStyleSecondary, rs.Name, fmt.Sprintf("/skill/%d", rs.ID), "", 0))
+			b := discord.NewButton(discord.ButtonStyleSecondary, rs.Name, fmt.Sprintf("/skill/%d", rs.ID), "", 0)
+			if rs.ID == id {
+				b = b.AsDisabled()
+			}
+			buttons = append(buttons, b)
 		}
 		r.Components = append(r.Components, discord.NewActionRow(buttons...))
 	}