💥 feat!: add tag filtering for projects (#431)

- Card (project) images no longer require manual top/bottom margin
adjustments for proper spacing. Action needed: Review existing card
images as previous manual margin adjustments may now be
unnecessary/excessive.
- Sites using `cards.html` with tags will now load JavaScript by
default when tags are present. To maintain no-JS behaviour, explicitly
set `enable_cards_tag_filtering = false` in either `config.toml` or the
`_index.md` file where `cards.html` is used.

templates/cards.html

@@ -18,7 +18,12 @@
             {%- set show_pages = section.pages -%}
         {% endif -%}
 
-    {%- include "partials/cards_pages.html" -%}
+        {%- if macros_settings::evaluate_setting_priority(setting="enable_cards_tag_filtering", page=section, default_global_value=true) == "true" -%}
+            {%- include "partials/filter_card_tags.html" -%}
+        {%- endif -%}
+
+
+        {%- include "partials/cards_pages.html" -%}
     </main>
 
     {% if paginator %}