Text and symbols are not exported from svg to DXF
<!--
See our full bug reporting guidelines at https://inkscape.org/contribute/report-bugs/
Writing a good bug report will ensure we'll be able to help efficiently. 🙂
-->
#### Summary:
<!-- Summarize the issue/suggestion concisely: -->
When an Inkscape svg file containing text objects and/or symbols is exported via save a copy as DXF, text objects and symbols are not present in the DXF.
#### Steps to reproduce:
<!-- Describe what you did (step-by-step) so we can reproduce: -->
- Download the attached Inkscape test file
- Open the file in Inkscape
- Save a copy as DXF (either type: R12 or R14)
- Open the DXF in LibreCad, other CAD program, or Inkscape
#### What happened?
Most objects from the Inkscape file are reproduced in the DXF, except text and symbols.
#### What should have happened?
All objects should be reproduced in the DXF.
Prior to versions 1.0x, the extension `prepare_file_save_as.py` was used to ungroup and convert all objects to paths before opening the save-as dialog, and after saving, the user was returned to a document in the state prior to conversion to paths. No stages of undo were required.
This has been an essential tool for workflows that output dxf for CAD, CAM and plotters. The extension has been deprecated but exporting to DXF is not currently a complete replacement for the extension. https://gitlab.com/inkscape/extensions/-/issues/49
Including all objects in the conversion to paths via _save as dxf_ would be the best solution, but a working extension would be the next best thing.
Thanks
####
Sample attachments:
<!-- Attach the sample file(s) highlighting the issue, if appropriate. -->
[save.svg](/uploads/59fd2775fdf44876177e9260f1a07ea8/save.svg)
#### Version info
<!--
Open 'Help > About' and click on the little bug icon in the bottom right corner that copies the debug information to your clipboard. For command line users, run 'inkscape --debug-info'.
For Inkscape 1.0.2 and older, please manually add the Inkscape Version and Operating System Version. The Inkscape version is listed in the About dialog. For command line users, run 'inkscape -V'
Paste the information in the empty space between the apostrophes below:
-->
```
Inkscape 1.2.2 (732a01da63, 2022-12-09)
GLib version: 2.74.3
GTK version: 3.24.35
glibmm version: 2.66.5
gtkmm version: 3.24.7
libxml2 version: 2.10.3
libxslt version: 1.1.37
Cairo version: 1.17.7
Pango version: 1.50.12
HarfBuzz version: 5.3.1
OS version: Windows 10 22H2
```
<!--
❤️ Thank you for filling in a new bug report, we appreciate the help! ❤️
Please be patient while we try to find the time to look into your issue.
Remember that Inkscape is developed by volunteers in their spare time, we'll try our best to respond to all reports.
-->
<!--
Please be careful when/after writing # for example in logs, code, or versions of linux
- use inline code span - single backticks (`) before and after it, like this - `inbox#1618`
- use multi-line code block - triple backticks (```) to fence/enclose console logs
- attach long logs as a text file.
-->
issue