fix(build): Update TypeScript config and build tooling; use accessor for Lit properties; bump deps and adjust package metadata

ts_web/elements/consentsoftware-cookieconsent.ts

@@ -23,7 +23,7 @@ export class ConsentsoftwareCookieconsent extends LitElement {
 
   // Reflects the current theme ('light' or 'dark')
   @property({ type: String, reflect: true })
-  public theme: 'light' | 'dark' = 'light';
+  public accessor theme: 'light' | 'dark' = 'light';
 
   /**
    * Define component styles with CSS variables that adjust based on theme.