Update to new iconography

[wallenstone]

Updated icon files in 'resources' folder using the latest icon. The mono icons may need some adjusting.

[OrangeDrangon]

I am not sure but I believe the old images were hand drawn and not copied from google. Is this the case here I do not want to merge images that do not belong to us.

[sladewatkins]

@OrangeDrangon The old images seem to have some differences between them and the originals from Google. Since the old logo is no longer in use, it might be worth updating the images in the future.

However, for now at least, one can change the icon themselves using whatever image they choose (for example: on macOS, using an icns file) until it is updated here.

[OrangeDrangon]

@OrangeDrangon The old images seem to have some differences between them and the originals from Google. Since the old logo is no longer in use, it might be worth updating the images in the future.

It is my understanding the current logos are original works. If you affirm these ones are as well then we can have a discussion on them and potential changes that may need to happen.

[jed84]

Is there a way the user can update the tray icon by themselves?
https://upload.wikimedia.org/wikipedia/commons/6/67/Google_Messages_icon_%282022%29.svg