Link tracker models are rather technical and should not be accessed as it is
by external people. Let us delegate control to controllers and lessen a bit
model accessibility.
Currently everyone can use add_click method and generate statistics. Now
statistics will be generated only through dedicated routes. It will make
statistics more reliable and ensure technical data remain private.
Next commit will update code from controllers and main methods in order to be
have a more readable click API and avoid link between non dependent modules.
This commit is linked to task ID 1904277 and PR #28242.
This additional administration group was formerly used to hide
the configuration menuitems for the common users.
Being manager should be enough to access these items
Remove link to marketing groups on access rights and main menu. UTM being a
technical module it is now linked to the configuration group. Link tracking has
also been updated to use the configuration group.
Access rights and main menu display have been udpated.