support svg:foreignObject html text (drawio svg export)
I have created this simple diagram in [drawio-desktop a.k.a. diagrams.net](https://github.com/jgraph/drawio-desktop/releases)
* [test.drawio.xml](/uploads/888f716945db369282ef97e389e6a6e8/test.drawio.xml)
From drawio 14.5.1 (so, latest at time of writing) itself, I export the same diagram as SVG, `test_drawio.svg`:
* 
If I try to open this `test_drawio.svg` in Inkscape 1.0.2-2 (e86c870879, 2021-01-15), the texts are not shown correctly (only one lineis shown, with ellipsis - which is some sort of a fallback from the drawio export, as far as I can tell):

On the other hand, loading this `test_drawio.svg` in Firefox 88, seems to work fine:

Also `wkhtmltopdf` 0.13 can correctly convert this SVG texts (however, `wkhtmltopdf` 0.12.6 fails).
Can Inkscape be somehow persuaded to open this SVG correctly?
issue