Add Git style and strengthen Hawolex

- Add git preset with repo capsule

- Boost Hawolex palette contrast

- Update context and contest JSONs

dotfiles/install/install-macos-user.sh

@@ -125,12 +125,15 @@ if [[ -t 0 ]]; then
     echo "     Preview: [user time] - @host /path"
     echo "  5) Mono    - Clean monochrome, fast read"
     echo "     Preview: [date time user] @host /path"
+    echo "  6) Git     - Minimal with git capsule"
+    echo "     Preview: [date time user] @host - /path (git)"
     read -r -p "Choose style [1]: " style_pick
     case "${style_pick}" in
       2) style_choice="neon" ;;
       3) style_choice="forge" ;;
       4) style_choice="circuit" ;;
       5) style_choice="mono" ;;
+      6) style_choice="git" ;;
       ""|1) style_choice="aurora" ;;
       *) echo "Invalid choice, using aurora."; style_choice="aurora" ;;
     esac