[types] RenderResult.container of type HTMLElement

[SavePointSam]

The current typing of RenderResult.container leads to an error when trying to use container.firstChild.

Not all HTMLElements have a firstChild property. Since we know container should always be a <div />, it should be HTMLDivElement.

[SavePointSam]

needed to add dom libs to my tsconfig.

{
  "compilerOptions": {
+    "lib": ["dom"],
  },
}