Support tile levels other than 13

[MisterGC]

At the moment erdblick uses a hardcoded zoom level of 13 (for all tile feature layers) - to enhance user control , this issue focuses on introducing an explicit tile level selection mechanism for available feature layer types. Unlike automatic level switching or detection, this feature will enable users to manually select the desired tile level for specific layers, such as roads, landmarks, or geographic areas. This functionality is crucial for users who require specific levels of detail for their analysis or visualization purposes.

Functionality Requirements:

• Manual Tile Level Selection Interface: Design and implement a user interface component that allows for the explicit selection of tile levels for individual feature layers.The interface should be intuitive and seamlessly integrated into the existing MapViewer layout.
• Layer-Specific Level Adjustment: Enable users to set different tile levels for any available feature layer type independently. Ensure that the selected level applies only to the chosen layer, without automatic adjustment or switching to other layers.
• Performance Considerations: Ensure that switching levels is responsive (e.g. cancel any pending requests for levels that are no longer relevant)
• User Experience Considerations: Prioritize a clear and straightforward selection process, avoiding complexity in the user interface. The interface only allows selection of zoom levels that are supported. (Have a look at the mocks that we have already discussed)
• Documentation and Instruction: Update the MapViewer documentation to clearly explain the use and benefits of explicit tile level selection.