feat(components): Add reusable message input component, refactor element properties to use accessor, update styles and docs, bump dependencies

ts_web/pages/mainpage.ts

@@ -12,7 +12,7 @@ export const mainpage = () => html`
       display: flex;
       align-items: center;
       justify-content: center;
-      padding: 20px;
+      padding: 0;
     }
     .demo-section {
       background: white;