[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, 3 insertions, 3 deletions

diff --git a/searx/templates/simple/results.html b/searx/templates/simple/results.html
index ee937f123..28dc4785d 100644
--- a/searx/templates/simple/results.html
+++ b/searx/templates/simple/results.html
@@ -74,7 +74,7 @@
     {% endif %}
     </div>
     <div id="backToTop">
-      <a href="#" aria-label="{{ _('Back to top') }}">{{ icon_small('chevron-up-outline') }}</a>
+      <a href="#" aria-label="{{ _('Back to top') }}">{{ icon_small('navigate-up') }}</a>
     </div>
     {% if paging %}
     <nav id="pagination" role="navigation">
@@ -92,7 +92,7 @@
                   <input type="hidden" name="theme" value="{{ theme }}" >
                   {% if timeout_limit %}<input type="hidden" name="timeout_limit" value="{{ timeout_limit|e }}" >{% endif %}
                   {{- engine_data_form(engine_data) -}}
-                  <button role="link" type="submit">{{ icon_small('chevron-left') }} {{ _('Previous page') }}</button>
+                  <button role="link" type="submit">{{ icon_small('navigate-left') }} {{ _('Previous page') }}</button>
                 </div>
             </form>
         {% endif %}
@@ -110,7 +110,7 @@
                 <input type="hidden" name="theme" value="{{ theme }}" >
                 {% if timeout_limit %}<input type="hidden" name="timeout_limit" value="{{ timeout_limit|e }}" >{% endif %}
                 {{- engine_data_form(engine_data) -}}
-                <button role="link"  type="submit">{{ _('Next page') }} {{ icon_small('chevron-right') }}</button>
+                <button role="link"  type="submit">{{ _('Next page') }} {{ icon_small('navigate-right') }}</button>
               </div>
           </form>
         {%- endif -%}