Doc: Allow to easily link to qt_add_shaders()


Add qt_add_shaders() as an alternative \keyword to the CMake command
page, replacing \keyword qt6_add_shaders.

Pick-to: 6.12
Change-Id: I54da0ea3326126a6ed477ec3e7523c10f3fecb89
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
commit8aca23840be5e7278ae5aae5c55f57daeee833d5
parentaf2e939aae12b4249462874b44398ad55d156493
authorKai Köhne <kai.koehne@qt.io>
committerKai Köhne <kai.koehne@qt.io>
commit timeMon, 6 Jul 2026 13:01:44 +0000