[meta] use a different tag for accessibility issues for the application and for the document and its exports

[Erwan-le-Gall]

usability of Docs and usability of the exported document are quite a different problem…

[Erwan-le-Gall]

ping @cyberbaloo

[virgile-dev]

We have an export tag that we can use jointly with accessibility @Erwan-le-Gall
Ex:

• export accessibility issue would be taggued accessibility export
• editor accessibility issue would be taggued accessibility editor
• Docs accessibility issue would be taggued accessibility
  I tagged a bunch of issues like this. Let me knwo what you think. Cheers

[Erwan-le-Gall]

perfect!