Resolve: feature/802-open-observation-image-galery

closes #802

What was done in this MR?

• The image galery (for the observation image items) was extracted into an ObservationImageGalery component that wraps a number of ObservationImageCards. (both created, incl. unit tests)
• For this some cleanup (mainly polishing the input and output types, as well as removing now unneeded code from SharedTable) was necessary
• An OpenImageTable view was added that manages the ObservationImageGalery for a "Offene Bildtafel" on the route /inspections/galery.
• Slight alignments in QSStatusIcon and pagination which won't interfere with existing code

Caveats:
The OpenImageTable has some requirements that couldn't be implemented fully yet:

1. At the moment there is no way to fetch a list of all Observations (independent from user role and access), ideally filtered by hasImage. That has to be added to the BE and must replace afterwards in the FE the .getAllObservations() in OpenImageTable.
2. No proper location obfuscation is currently implemented. The location shown in the map-popup in ObservationImageCard is currently a center point of the related Section. (For this matter some kind of fuzziness. Ask Katharina for more info about that.) But a proper location anonymization like in the "flow" project wasn't implemented in the "tmd"-BE either (Alex Grau knows more about that).
3. For anonymization purposes in the open variant of the ObservationImageCard following elements were removed (with open prop as true):
   • No Section Name.
   • No edit button, that leads to the edit inspection view.
   • (Theoretically) obfuscated location on the map.
     There is the question if the transect-name and the comment (which also could contain information that allow conclusions about its author) should be removed. This would likely entail an adjustment of the header of the ObservationImageCard in open mode, because there would be too much whitespace.

Before merging this MR - Make sure to create follow up tickets in the front- and backend for following issues:

• Getting a full (!) observation list from the backend
• Getting a properly anonymized location from the backend