[mobility-theme] Rename main categories "Public transport scheduled transport" and "Public transport non-scheduled transport"

[BWitsch]

Problem: 2 time "transport" Solution: "Scheduled public transport" and "Non-scheduled public transport"

[peterlubrich]

Okay, this renaming might be considered for an update of the Controlled Vocab Mobility Theme.

Advice: the concrete value in a NAP system (= wording on a GUI, for example) does not need to be equal to the value in the Controlled Vocab. But for the mobilityDCAT-AP export of the NAP metadata, the official mobilityDCAT-AP values must still be used,

Example:

• In your NAP GUI, you use "Scheduled public transport" in your NAP (or anything in German or anything else).
• In your mobilityDCAT-AP export, you use "https://w3id.org/mobilitydcat-ap/mobility-theme/public-transport-scheduled-transport".

[marioscrock]

Thanks @BWitsch, I agree with @peterlubrich. If approved by SWG4.4, I will update the vocabulary accordingly. This revision could be combined with the one under discussion in Issue #14.