refactor: better check for empty pomodoro client settings

- replace UnsetPomodoroConfig with empty struct check in client commands
- remove unused UnsetPomodoroConfig variable

🤖

internal/shared/configDefaults.go

@@ -15,6 +15,3 @@ var DefaultPomodoroConfig = models.GoTomatoPomodoroConfig{
 	LongBreak:  15 * 60,
 	Sessions:   4,
 }
-
-// used to check if client passed a config json
-var UnsetPomodoroConfig models.GoTomatoPomodoroConfig

internal/websocket/client_commands.go

@@ -49,7 +49,7 @@ func handleClientCommands(ws *websocket.Conn) {
 				}
 			case "updateSettings":
 				if !pomodoro.IsPomodoroOngoing() {
-					if clientCommand.PomodoroSettings != shared.UnsetPomodoroConfig {
+					if clientCommand.PomodoroSettings != (models.GoTomatoPomodoroConfig{}) {
 						shared.Message.PomodoroSettings = clientCommand.PomodoroSettings
 						shared.Message.TimeLeft = clientCommand.PomodoroSettings.Work
 					}