Download map dialog should use Map mode as theme

[Dmytro Prodchenko]

Description

How to reproduce

• Set App theme to Light in Menu – Settings – Profile – General settings
• Set Map mode to Night in Menu – Configure Map – Map mode
• Move map above region without map
• Zoom in to 8 zoom

Actual result

• Part of the data isn't visible

Expected result

• Dialog theme should depend from Map mode

[DmitrySvetlichny]

#3448