Are there any related issues?

Did not find any.

What operating system are you using?

macos

What version of Mailspring are you using?

1.0.3

--

Does this feature exist in another mail client or tool you use?

Yes

Please provide a reading pane below the messages pane.
A reading pane beside the messages pane wastes a lot of space. Space below the messages is

In text editing, QWERTZ keyboard works fine, however keyboard shortcuts Y and Z are swaped.

Expected behavior

If I press "z" button (on QW... row) a read flag should be toggled
If I press "y" button (on YXC.. row) a "copy message" function should be evoked

Actual behavior

If I press "z" button (on QW... row) a "copy message" function is evoked
If I press "y" button (on YXC.. row)

If you select the "None" or "Default" email signature it is possible to paste text into the preview field. This should not be possible.
Seen in the desktop client.

Problem
Right now any user with a valid auth token can retrieve any tag resource as long as they know the ID of the resource. We should return a 404 (Not found) error if someone tries to retrieve/update/delete a resource that does not have a matching account_id

Solution
In the show, update, and delete methods of the tag controller, let's add an authorize plug (middleware)

I have the following file that handles my sendgrid set up.

import sgMail from '@sendgrid/mail';

const sendGridApiKey = process.env.SENDGRID_API_KEY;

if (!sendGridApiKey) {
  throw new Error('The sendgrid api key has not been set in the environment variables');
}

sgMail.setApiKey(sendGridApiKey);

export { sgMail };

After setting my api key I need to be able to do som