toil(front): Add note about the project access when modifying notification (#508)

## 📝 Description

Small UI improvement, adding a note to the notification form
renderedtext/project-tasks#2659

## ✅ Checklist
- [x] I have tested this change
- [ ] This change requires documentation update

Author: VeljkoMaksimovic

front/assets/js/edit_notification.js

@@ -29,6 +29,9 @@ export var EditNotification = {
                      class="form-control w-100"
                      placeholder="e.g. my-project, /hotfix-*/, /.*/" >
               <p class="f6 mt1 mb0 nb1">Comma separated, regular expressions allowed</p>
+              <p class="f6 mt2 pa2 bg-washed-yellow ba b--yellow br2">
+                  <strong>Note:</strong> Regardless of the regex patterns specified, notifications will only be sent for projects to which the creator of this notification has access.
+              </p>
             </div>
 
             <div class="pl4 mb3">

front/lib/front_web/templates/notifications/form.html.eex

@@ -50,6 +50,9 @@
                   class: "form-control w-100",
                   placeholder: "e.g. my-project, /hotfix-*/, /.*/" %>
               <p class="f6 mt1 mb0 nb1">Comma separated, regular expressions allowed</p>
+              <p class="f6 mt2 pa2 bg-washed-yellow ba b--yellow br2">
+                  <strong>Note:</strong> Regardless of the regex patterns specified, notifications will only be sent for projects to which the creator of this notification has access.
+              </p>
             </div>
             <div class="mb3 pl4">
               <label class="db b mb1">