Merge TypeScript types from master into main

packages/slate-hyperscript/src/creators.ts

@@ -237,7 +237,7 @@ export function createEditor(
   const selection: Partial<Range> = {}
   const editor = makeEditor()
   Object.assign(editor, attributes)
-  editor.children = descendants
+  editor.children = descendants as Element[]
 
   // Search the document's texts to see if any of them have tokens associated
   // that need incorporated into the selection.

packages/slate-hyperscript/test/jsx.d.ts

@@ -0,0 +1,6 @@
+// This allows tests to include Slate Nodes written in JSX without TypeScript complaining.
+declare namespace jsx.JSX {
+  interface IntrinsicElements {
+    [elemName: string]: any // eslint-disable-line
+  }
+}