message: Add "JSON" to the "Open settings file" command names
  ![image](https://user-images.githubusercontent.com/18356694/173090336-3512ee36-ae8b-41d5-8823-09cb1354c7ef.png)
  * [x] Closes
diff: <value>Next tab</value>
  </data>
  <data name="OpenBothSettingsFilesCommandKey" xml:space="preserve">
  - <value>Open both settings and default settings files</value>
  + <value>Open both settings and default settings files (JSON)</value>
  + <comment>{Locked="JSON"}. "JSON" is the extension of the file that will be opened.</comment>
  </data>
  <data name="OpenDefaultSettingsCommandKey" xml:space="preserve">
  - <value>Open default settings file</value>
  + <value>Open default settings file (JSON)</value>
  + <comment>{Locked="JSON"}. "JSON" is the extension of the file that will be opened.</comment>
  </data>
  <data name="OpenNewTabDropdownCommandKey" xml:space="preserve">
  <value>Open new tab dropdown</value>
  </data>
  <data name="OpenSettingsCommandKey" xml:space="preserve">
  - <value>Open settings file</value>
  + <value>Open settings file (JSON)</value>
  + <comment>{Locked="JSON"}. "JSON" is the extension of the file that will be opened.</comment>
  </data>
  <data name="OpenTabColorPickerCommandKey" xml:space="preserve">
  <value>Set the tab color...</value>
  