title: Redirect all users when the admin clicks start button
body: <p>So I am working on a voting application. The application have an admin and users.</p>
  <p>I want the voting campaign to start when the admin clicks on start button.</p>
  <p>I want to redirect all users to another page when the admin start the voting.</p>
  <p>Any suggestions ? How can I implement this without sending a request to the database.</p>
  <p>Technologies used : Angular and Java (spring boot), mysql DB</p>
  <p>( Edit : my app is like poker planning (scrum planning) websites,
  for example : **<a href="https://www.planningpoker.com/" rel="nofollow noreferrer">https://www.planningpoker.com/</a> )</p>