feat: update placeholder text for alarm time input field

Author: Grajales-K

Sprint-3/alarmclock/index.html

@@ -16,7 +16,7 @@
     <div class="centre">
       <h1 id="timeRemaining">Time Remaining: 00:00</h1>
       <label for="alarmSet">Set time to:</label>
-      <input id="alarmSet" type="number" placeholder="Type or select the time ------->" min="0" step="1"/>
+      <input id="alarmSet" type="number" placeholder="Type or select the time -->" min="0" step="1"/>
 
       <button id="set" type="button">Set Alarm</button>
       <button id="stop" type="button">Stop Alarm</button>