feat: TT-580 add placeholders in ticket uri and description text inputs on the time clock page

Author: LuisMS7

src/app/modules/time-clock/components/entry-fields/entry-fields.component.html

@@ -17,6 +17,7 @@
     <input
       (blur)="onSubmit()"
       type="text"
+      placeholder="Enter Jira ticket URL"
       id="uri"
       formControlName="uri"
       class="form-control"
@@ -55,6 +56,7 @@
       maxlength="1500"
       (blur)="onSubmit()"
       formControlName="description"
+      placeholder="Write a brief description of your activity"
       class="form-control"
       id="NotesTextarea"
       rows="2"></textarea>