Text entry on the canvas does not honor right to left

While working to fix issue #83276: Right to left languages are not handled correctly, we learnt that there was still one crucial missing piece of make scores for R2L languages such as Hebrew.

As Werner explained it: https://musescore.org/en/node/83276#comment-401826
> There are other bugs related to right-to-left languages. Especially text entry on the canvas does not honor right to left. I also get some runtime warnings about QString arg() arguments which are not parsed property.