Consolidate all subproject package.json files into root package.json and migrate to unified Vite MPA build

vite-lit-capacitor/web/js/my-element.d.ts

@@ -15,7 +15,7 @@ export declare class MyElement extends LitElement {
      * The number of times the button has been clicked.
      */
     count: number;
-    render(): import("lit-html").TemplateResult<1>;
+    render(): import("lit").TemplateResult<1>;
     private _onClick;
     foo(): string;
     firstUpdated(): void;