More request number search shortcuts

[hennevogel]

With the web-UI, try entering #1305181 in the search box in the upper-right corner.

Hope this helps.

Well, "#{number}" is good, but not intuitive. It would be nice to show request number also for "{number}", "rq#{number}", "rq {number}", "request {number}" and "request#{number}".

Originally posted by @stanislav-brabec in #10705