feat: enhance terminal output with help footer

- add footer to terminal output for better user guidance
- show key bindings for start, pause/resume, stop, and quit

🤖

internal/notifications/terminal.go

@@ -3,6 +3,7 @@ package notifications
 import (
 	"ChronoTomato/internal/shared"
 	"fmt"
+	"strings"
 )
 
 func TerminalOutput() {
@@ -36,4 +37,8 @@ func TerminalOutput() {
 	}
 
 	fmt.Printf(timerOutput)
+
+	//footer
+	fmt.Printf(strings.Repeat("\n", 3))
+	fmt.Printf("s: start • space: pause/resume • r: stop • q: quit")
 }