Switch from snowpack to vite for frontend tooling

Closes: #3

package.json

@@ -1,22 +1,23 @@
 {
-  "type": "module",
+  "name": "owl-vite",
+  "version": "0.0.0",
   "scripts": {
-    "start": "NODE_OPTIONS='--experimental-json-modules' snowpack dev",
-    "build": "NODE_OPTIONS='--experimental-json-modules' snowpack build",
-    "test": "echo \"This template does not include a test runner by default.\" && exit 1"
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
   },
   "dependencies": {
     "@popperjs/core": "^2.11.0",
+    "bootstrap": "^5.3.2",
     "fork-awesome": "^1.2.0",
-    "leaflet": "^1.8.0",
-    "leaflet-extra-markers": "^1.2.1",
-    "redaxios": "^0.4.1",
-    "vue": "^3.2.26"
+    "leaflet": "^1.9.4",
+    "leaflet-extra-markers": "^1.2.2",
+    "redaxios": "^0.5.1",
+    "vue": "^3.3.7"
   },
   "devDependencies": {
-    "@snowpack/plugin-dotenv": "^2.1.0",
-    "@snowpack/plugin-vue": "^2.4.0",
-    "snowpack": "^3.3.7",
-    "snowpack-plugin-cdn-import": "^1.0.0"
+    "@vitejs/plugin-vue": "^4.4.0",
+    "rollup-plugin-esm-import-to-url": "^2.1.0",
+    "vite": "^4.5.0"
   }
 }

snowpack.config.mjs

@@ -1,33 +0,0 @@
-/** @type {import("snowpack").SnowpackUserConfig } */
-export default {
-  mount: {
-    public: {url: '/', static: true},
-    frontend: {url: '/dist'},
-  },
-  plugins: [
-    '@snowpack/plugin-vue',
-    '@snowpack/plugin-dotenv',
-    ['snowpack-plugin-cdn-import', {
-        dependencies: pkg.dependencies,
-        enableInDevMode: true,
-        baseUrl: 'https://unpkg.com',
-    }]
-  ],
-  routes: [
-    /* Enable an SPA Fallback in development: */
-    // {"match": "routes", "src": ".*", "dest": "/index.html"},
-  ],
-  optimize: {
-    /* Example: Bundle your final build: */
-    // "bundle": true,
-  },
-  packageOptions: {
-    /* ... */
-  },
-  devOptions: {
-    /* ... */
-  },
-  buildOptions: {
-    /* ... */
-  },
-};

vite.config.js

@@ -0,0 +1,29 @@
+import { defineConfig } from 'vite'
+import vue from '@vitejs/plugin-vue'
+import path from 'path'
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [vue()],
+  define: { 'process.env.NODE_ENV': '"production"' },
+  build: {
+    target: 'esnext',
+    lib: {
+      entry: path.resolve(__dirname, 'src/main.js'),
+      name: 'OWL',
+      fileName: (format) => `owl.${format}.js`
+    },
+  },
+    /* rollupOptions: {
+      external: ['vue', 'leaflet'],
+	  output: {
+        // Provide global variables to use in the UMD build
+        // for externalized deps
+        globals: {
+          vue: 'Vue',
+          leaflet: 'L',
+        }
+      }
+	}, */
+  // },
+})