[web-client] simple theme: refactor jinja_svg_catalog and cleanup icon names

This patch implements the template generation of the template:

  searx/templates/simple/icons.html

by the way the icon set (the icon names) has been normalized:

  film-outline   --> film
  magnet-outline --> magnet
  ..
  warning        --> alert

Some missing (categorie) icons had been added.

Some of the ionicons are not suitable for a dark theme, we fixed the svg
manually in src/svg/ionicons:

- https://github.com/searxng/searxng/pull/4284#issuecomment-2680550342

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/searx/templates/simple/result_templates/files.html b/searx/templates/simple/result_templates/files.html
index 01dfc3535..13a425f31 100644
--- a/searx/templates/simple/result_templates/files.html
+++ b/searx/templates/simple/result_templates/files.html
@@ -6,8 +6,8 @@
 
 {%- if result.embedded -%}
     <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer media-loader disabled_if_nojs" data-toggle="collapse" data-target="#result-media-{{ index }}" data-btn-text-collapsed="{{ _('show media') }}" data-btn-text-not-collapsed="{{ _('hide media') }}">
-    {%- if result.mtype == 'audio' %}{{ icon_small('musical-notes-outline') -}}
-    {%- elif result.mtype == 'video' %} {{ icon_small('play-outline') -}}
+    {%- if result.mtype == 'audio' %}{{ icon_small('musical-notes') -}}
+    {%- elif result.mtype == 'video' %} {{ icon_small('play') -}}
     {%- endif %} {{ _('show media') }}</a></small>
 {%- endif -%}