Improve headers on notifications page of admin dashboard

admin_dashboard.yaml

@@ -1353,6 +1353,8 @@ views:
         cards:
           - type: heading
             heading: Text Notifications
+            heading_style: title
+            icon: mdi:message
           - type: entities
             entities:
               - entity: input_boolean.text_notifications
@@ -1374,6 +1376,12 @@ views:
         cards:
           - type: heading
             heading: TTS
+            heading_style: title
+            icon: mdi:bullhorn
+          - type: heading
+            icon: ''
+            heading: Master Switches
+            heading_style: subtitle
           - type: entities
             entities:
               - entity: input_boolean.audible_notifications
@@ -1420,6 +1428,8 @@ views:
         cards:
           - type: heading
             heading: Briefings Run Today
+            heading_style: title
+            icon: mdi:home-analytics
           - type: entities
             entities:
               - entity: input_boolean.good_morning
@@ -1437,6 +1447,8 @@ views:
         cards:
           - type: heading
             heading: Volume Settings
+            heading_style: title
+            icon: mdi:volume-high
           - type: entities
             entities:
               - entity: input_number.basement_echo_dot_day_volume
@@ -1599,6 +1611,8 @@ views:
         cards:
           - type: heading
             heading: Media Players
+            heading_style: title
+            icon: hue:sync-music
           - square: true
             columns: 3
             type: grid