Added In-Game Map Simulation and Team Colors to Preview

[BrayFlex]

Layer patterns over 9 real in-game maps with the 🗺 popover, and preview

team-game colors in radial sections.

• Add map-simulation module with a toggle-switch popover, alphabetical map
  picker (World, Alps, Two Lakes, Arctic, Mare Nostrum, Gulf of St. Lawrence,
  Australia, Baikal, South America), land-only masking and in-game territory
  fill so the preview matches the in-game map view at any zoom
• Add "Show Team Colors" toggle that replaces the primary color with each of
  the 7 team colors in radial wedges from the canvas center
• Both controls use toggle switches; the Simulate Map toggle follows selection
  (turns off when the selected map is clicked again)
• Popover polish: 256px frosted-glass panel, selected map highlighted instead
  of checkmarked, dark preview background to stop primary-color bleed
• Add zero-dependency scripts/render-maps.mjs (npm run render:maps) that
  pre-renders map + land-mask PNGs and the maps.json registry from an
  OpenFrontIO checkout; bundle them under src/maps and src/data

Add Copy Image Button & Team-Color Icon Tint to Preview

• Move Game Simulations button next to the preview zoom controls
• Add Copy image (⎙) button that copies the preview as a PNG to the clipboard
• Tint the map button with the 7 team colors while Simulate Teams is on
• Small fixes to: UI spacing on popovers to create uniformity, size tick display, color display area in floating preview and font imports.
• Preview Header Redesign:

[⇥] Preview [− 100% +] …… 🗺 ⎙ [❐]