Add stubby MapLibre shell using local style and tiles resources

[migurski]

Introduces examples/local.html, distinct from other examples by using generated output of styles and tiles to serve a map. Meant for users of Basemaps repo who intend to build their Styles & Tiles and need a way to see those results in a simple browser shell to copy/paste into their own sites or apps.

Distinct from /app by not introducing a server component, showing how static resources alone can define a useable map.

Uses local font and sprite files downloaded from protomaps/basemaps-assets.

Example sequence to generate and display in a browser:

cd tiles
mvn clean package -DskipTests
java -jar target/*-with-deps.jar --download --area=monaco --force
cd -

cd styles
npm run generate_style style.json https://example.com/tilejson.json light en \
  'http://localhost:8080/basemaps-assets/sprites/v4/light' \
  'http://localhost:8080/basemaps-assets/fonts/{fontstack}/{range}.pbf'
cd -

curl -L https://github.com/protomaps/basemaps-assets/archive/refs/heads/main.zip -o /tmp/basemaps-assets-main.zip
unzip /tmp/basemaps-assets-main.zip 'basemaps-assets-main/fonts/*' 'basemaps-assets-main/sprites/*' -d /tmp
mv /tmp/basemaps-assets-main basemaps-assets

open http://localhost:8080/examples/local.html
npx http-server -p 8080 -c-1

Result:

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud