Add GA tracking with utm params to links and search field

[thomasbonte]

We want to track the traffic from MuseScore connect to the MuseScore.com/.org sites. In order to do so, we can use utm params in the outbound links.

There is also the search field for which we can add the utm link to the action.

[thomasbonte]

Params to add to each link are: utm_source=connect&utm_medium=editor&utm_campaign=connect

Just for the reference, this is what we use as params in MuseScore for the help menu and contextual help:

• utm_source=desktop&utm_medium=menu&utm_content=f17c166&utm_campaign=MuseScore2.1.9
• utm_source=desktop&utm_medium=contextual&utm_campaign=MuseScore2.1.9&utm_content=f17c166&utm_term=element:note