Hello,
For security reasons, the dashboard, login, and register are file-based pages.
If you want to check those files, you can check the following path.
File Path: themes\jobzilla\dz-inc\user_panel
In Login, Register page, You can change that page's image from Theme Options.
check: https://prnt.sc/K326Ia9F3W-D
We will add it to the Elementor in our next update for a better user interface.
For Candidate & Employer Dashboard file.
check: https://prnt.sc/WDI--AiyOiUQ
Thanks