Refactor dashboard card classes to use 'content-card' instead of 'dashboard-card'

- Updated various views to replace 'dashboard-card' with 'content-card' for consistency in styling.
- Modified filter and table card classes across multiple pages including applications, campaigns, commands, datasets, dayparts, displays, display groups, display profiles, fonts, layouts, libraries, menu boards, modules, player software, playlists, resolutions, schedules, settings, sync groups, tags, tasks, templates, transitions, users, and user groups.

custom/otssignange/views/settings-page.twig

@@ -19,7 +19,7 @@
             <p class="text-muted">{% trans "Configure CMS settings." %}</p>
         </div>
 
-        <div class="widget dashboard-card ots-displays-card">
+        <div class="widget content-card ots-displays-card">
             <div class="widget-body ots-displays-body">
                 <div class="ots-table-toolbar">
                     {% if settings.SETTING_LIBRARY_TIDY_ENABLED %}