Refactor profile-edit, candidate-profile, proposed-candidates, and registration forms

- Added a new div container in profile-edit.php for better layout structure.
- Removed the back button from candidate-profile.php to streamline navigation.
- Updated proposed-candidates.php to open candidate links in a new tab for improved user experience.
- Modified registration forms to make the profile visibility checkbox optional, enhancing user flexibility.

templates_user/globelus/candidates/profile-edit.php

@@ -188,6 +188,7 @@
                   ?>
                 </div>
               </div>
+              <div class="col-12">
               <div class="row">
                 <div class="col-12">
                   <div class="form-group row">