feat(admin) `Tasks` admin page

Description

feat(admin) Tasks admin page

• new Tasks admin page allow management of automated processes
• for now it allows suspension/resume of propagation/synchronization

How to test

You can follow task description and the process described in the BE MR

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

Other information

N/A

Related issues

re STR-1504