Clean up miniview and search templates (#659)

* Add miniview and search template for Article and Event pages.
* Use miniview for Article Index and Event Index pages, for consistency.
* Make miniviews renderings more consistent throughout the site.
* Uniform height of cards when rendering miniviews in a row, e.g.
related pages or latest pages.
* Fix heading levels in miniviews and search templates to fix
accessibility warnings.
* Miniviews now have two new variables to control heading size and card
styling, which can be passed in: `{% include .. with h="h3" and
miniview_css_class="my-class-here" %}`

Fixes #578, #647, and #660

Author: vsalvino

coderedcms/models/page_models.py

@@ -713,6 +713,7 @@ class Meta:
         abstract = True
 
     template = "coderedcms/pages/article_page.html"
+    miniview_template = "coderedcms/pages/article_page.mini.html"
     search_template = "coderedcms/pages/article_page.search.html"
 
     related_show_default = True
@@ -856,6 +857,7 @@ class Meta:
         ("-date_display", "Display publish date, newest first"),
     ) + CoderedWebPage.index_order_by_choices
 
+    # DEPRECATED: Remove these show_* options in 5.0
     show_images = models.BooleanField(
         default=True,
         verbose_name=_("Show images"),
@@ -890,6 +892,10 @@ class Meta:
         verbose_name = _("CodeRed Event")
         abstract = True
 
+    template = "coderedcms/pages/event_page.html"
+    miniview_template = "coderedcms/pages/event_page.mini.html"
+    search_template = "coderedcms/pages/event_page.search.html"
+
     calendar_color = ColorField(
         blank=True,
         help_text=_(