chore: explicitly coerce types in element commands

Typescript doesn't like accessing queries using a string variable since
the queries object doesn't have an index type. This is currently ignored
with a @ts-expect-error declaration. Instead ensure the queryName
variable is treated as a key of the queries object.

Author: olivierwilkinson

src/index.ts

@@ -136,9 +136,9 @@ async function setupBrowser(browser: BrowserObject | MultiRemoteBrowserObject) {
     // add query to scoped to Element
     browser.addCommand(
       queryName,
-      function(...args: any[]) {
-        // @ts-expect-error
-        return within(this as Element)[queryName](...args)
+      function (...args: any[]) {
+        const element = this as Element
+        return within(element)[queryName as keyof typeof queries](...args)
       },
       true,
     )