Add a notice for users with ad-block to disable it for metrics and error tracing

Ask the user to kindly disable ad-blockers since they interfere with the functionality of the website

• Use local storage to not spam the user

added enhancement label

mentioned in commit a0fac7d9

mentioned in merge request !53 (merged)

mentioned in commit b5781fe6

closed with merge request !53 (merged)

mentioned in commit 9181b657