docs: refer to "working with selectors" from all `'selector'` arguments (#2213)
docs: refer to "working with selectors" from all `'selector'` arguments (#2213)

The "working with selectors" section elaborates on rules that we use
to parse selectors.

Fixes #2197
microsoft/playwright,microsoft/playwright,microsoft/playwright,microsoft/playwright,microsoft/playwright,microsoft/playwright,microsoft/playwright,microsoft/playwright,microsoft/playwright