Add option to view only notifications

src/invidious/helpers.cr

@@ -176,10 +176,15 @@ class Preferences
       nilable: true,
       default: false,
     },
-    max_results: Int32,
-    sort:        String,
-    latest_only: Bool,
-    unseen_only: Bool,
+    max_results:        Int32,
+    sort:               String,
+    latest_only:        Bool,
+    unseen_only:        Bool,
+    notifications_only: {
+      type:    Bool,
+      nilable: true,
+      default: false,
+    },
   })
 end
 

src/invidious/views/preferences.ecr

@@ -97,6 +97,11 @@ function update_value(element) {
                 <input name="unseen_only" id="unseen_only" type="checkbox" <% if user.preferences.unseen_only %>checked<% end %>>
             </div>
 
+            <div class="pure-control-group">
+                <label for="notifications_only">Only show notifications: </label>
+                <input name="notifications_only" id="notifications_only" type="checkbox" <% if user.preferences.notifications_only %>checked<% end %>>
+            </div>
+
             <legend>Data preferences</legend>
             <div class="pure-control-group">
                 <label>