Implement device-wise notification mute/unmute

[CircuitCoder]

Muting notification for a certain device may be helpful in certain cases, such as when a degraded drive is waiting for replacement. This PR adds the backend and frontend changes for muting a device.

It's a pleasant surprise that a setting dialog containing a "notification" entry in the device detail page is already present. This PR reuse that dialog.

Changes

• Added a column mute: boolean to the device table.
• For devices with mute = true, skip notification.
• Added two endpoints: /device/:wwn/mute and /device/:wwn/unmute for setting the mute status in devices.
• Implement the "Notification" entry in the device detail settings dialog.
• Enable the settings dialog in wide screen.
• Added a "mute" icon in the device detail page and dashboard card for muted devices.

Future works

Implementation presented in this PR has some shortcomings:

• I'm rather new to Angular, so the handling of state updates are a little sloppy. Right now the following actions happens sequentially:
  The dialog closes. -> Send update request -> Refresh drive data
  One may see some opportunity for races here. However races does not introduce any inconsistency state, so no additional locking is done in this PR.
• Alignment of the muted icon is incorrect with some page zooms. Ideally we'd want a icon-font with line-height as its means of vertical aligning, but that means we'll bundle a icon font.
• Maybe instead of a device-wise mute, a attribute-wise mute is better?
• There is no tests whatsoever

Screenshots