chore(admin): remove visualizer and its dependencies

Description

chore(admin): remove visualizer and its dependencies

• the visualizer was completely removed from the admin section of admin GUI
• all graphical dependencies were removed

BREAKING CHANGE: Visualizer functionality was removed from admin GUI.

How to test

Checkout admin GUI, make sure the visualizer and its subsections are not accessible directly, from overview or side-menu.

Author's checklist

• I have followed the contribution guidelines
• This MR has been tested or does not change functionality
• I have added relevant merge request dependencies (if this MR has any)
• I have added the correct labels
• I have assigned reviewers (if any are relevant)
• I have edited the documentation (if the changes require it) or I have noted the need for the change if I do not have access to the documentation
• I have marked all introduced BREAKING CHANGES or necessary DEPLOYMENT NOTES in the commit message(s)

Reviewer's checklist

• This MR has been tested or does not change functionality
• This MR has correct commit message format

Related issues

Closes STR-1187