fix: background interval bug

- took far too long

src/components/modals/main/settings/sections/Message.jsx

@@ -70,7 +70,6 @@ export default class Message extends PureComponent {
         />
         <SettingsItem
           title={variables.getMessage('modals.main.settings.sections.message.messages')}
-          subtitle=""
           final={true}
         >
           <button onClick={() => this.modifyMessage('add')}>

src/components/modals/main/settings/sections/QuickLinks.jsx

@@ -234,7 +234,6 @@ export default class QuickLinks extends PureComponent {
 
         <SettingsItem
           title={variables.getMessage('modals.main.settings.sections.quicklinks.title')}
-          subtitle=""
           final={true}
         >
           <button onClick={() => this.setState({ showAddModal: true })}>

src/components/modals/main/settings/sections/Time.jsx

@@ -102,7 +102,6 @@ export default class TimeSettings extends PureComponent {
           title={variables.getMessage(
             'modals.main.settings.sections.time.vertical_clock.change_hour_colour',
           )}
-          subtitle=""
         >
           <div className="colourInput">
             <input
@@ -124,7 +123,6 @@ export default class TimeSettings extends PureComponent {
           title={variables.getMessage(
             'modals.main.settings.sections.time.vertical_clock.change_minute_colour',
           )}
-          subtitle=""
         >
           <div className="colourInput">
             <input