✨(widgets) import widgets code from Messages and setup Docker workflow (#33)

This adds Gaufre v2 with source, documentation, examples and built artefacts.
Also includes the feedback widget from Messages.

packages/widgets/vite.config.ts

@@ -0,0 +1,19 @@
+import { defineConfig } from 'vite'
+
+
+export default defineConfig({
+  server: {
+    proxy: {
+      '^/widgets/dist/(.+)\\.js$': {
+        target: 'http://localhost:8931',
+        rewrite: (path) => {
+          const match = path.match(/^\/widgets\/dist\/(.+)\.js$/)
+          if (match) {
+            return `/src/widgets/${match[1]}/main.ts`
+          }
+          return path
+        }
+      }
+    }
+  }
+})