fix: refine mobile map controls and submission save UX

- rework mobile layout: top horizontal controls + bottom contextual toolbars
- disable memorial drag-and-drop on coarse-pointer/mobile and keep tap-based placement flow
- add submission-level editing UX polish (clearer overwrite/new behavior and animated include-section visibility)
- fix submission switching/save sync issues so selected submission and map state stay aligned
- prevent unnecessary submission list refresh when toggling between pink and memorial

Author: Tuvudel