Until now, the bookmark queries were sent to mu in their original form. Thus,
if you have `mu4e-query-rewrite-function` set, the numbers shown next to the
bookmarks didn't reflect the actual number of query results you'd get when
opening a bookmark view.
With this commit, the `mu4e-query-rewrite-function` is applied and the result
is sent to mu for evaluation (in `mu4e~start`) and the likewise the rewritten
queries are used to find the matching one in the last query results (in
`mu4e~main-bookmarks`).
* mu4e/mu4e-utils.el (mu4e~start): Send the rewritten queries for evaluation to
mu.
* mu4e/mu4e-main.el (mu4e~main-bookmarks): Compare last mu query results with
rewritten queries.