chore: prepare for npm publishing as @gkucmierz/bitcoin-logo

vite.config.js

@@ -1,8 +1,24 @@
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
+import { resolve } from 'path'
 
 export default defineConfig({
   plugins: [vue()],
+  build: {
+    lib: {
+      entry: resolve(__dirname, 'src/index.js'),
+      name: 'BitcoinLogo',
+      fileName: 'bitcoin-logo',
+    },
+    rollupOptions: {
+      external: ['vue'],
+      output: {
+        globals: {
+          vue: 'Vue',
+        },
+      },
+    },
+  },
   server: {
     host: true,
     allowedHosts: true,