edit-dialog: Split Reminders to its own section

src/gui/gcal-edit-dialog.ui

@@ -195,6 +195,20 @@
                   </object>
                 </child>
 
+                <child>
+                  <object class="GtkLabel">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="hexpand">True</property>
+                    <property name="margin-top">12</property>
+                    <property name="xalign">0.0</property>
+                    <property name="label" translatable="yes">Schedule</property>
+                    <attributes>
+                      <attribute name="weight" value="bold" />
+                    </attributes>
+                  </object>
+                </child>
+
                 <child>
                   <object class="GtkListBox">
                     <property name="visible">True</property>
@@ -405,6 +419,33 @@
                       </object>
                     </child>
 
+                  </object>
+                </child>
+
+                <child>
+                  <object class="GtkLabel">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="hexpand">True</property>
+                    <property name="margin-top">12</property>
+                    <property name="xalign">0.0</property>
+                    <property name="label" translatable="yes">Reminders</property>
+                    <attributes>
+                      <attribute name="weight" value="bold" />
+                    </attributes>
+                  </object>
+                </child>
+
+                <child>
+                  <object class="GtkListBox">
+                    <property name="visible">True</property>
+                    <property name="selection-mode">none</property>
+                    <property name="sensitive" bind-source="GcalEditDialog" bind-property="writable" bind-flags="default" />
+
+                    <style>
+                      <class name="frame" />
+                    </style>
+
                     <!-- Reminders -->
                     <child>
                       <object class="HdyActionRow">
@@ -483,6 +524,7 @@
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
+                        <property name="margin-top">12</property>
                         <property name="xalign">0.0</property>
                         <property name="label" translatable="yes">Notes</property>
                         <attributes>