[fix] ionic.io/ionicons - add back missing class="ionicon"

Seems to me svg2jinja added the class in the past .. but no longer in new builds
/ this patch adds the class back by using addAttributesToSVGElement [1].

To test this patch use:

    $ ./manage themes.simple
    $ cat searx/templates/simple/icons.html

and check `class="ionicon"` is in the outer `<svg ..>` tags.

[1] https://svgo.dev/docs/plugins/add-attributes-to-svg-elements/
[2] https://ionic.io/ionicons

Closes: https://github.com/searxng/searxng/issues/3383
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

0 files changed, 0 insertions, 0 deletions