Move EWMH code from `X.H.Focus` to `X.H.EwmhDesktops`. Thus:
- I'll use `manageHook` for handling activated window.
- By default window activation do nothing (assuming default `ManageHook`).
- I can use `activated` predicate for changing window activation behavior.
- I may use additional combinators from `X.H.Focus` for more complex
focus/workspace switch strategies.