Notification rework + docs + devDetails

docs/ICONS.md

@@ -1,6 +1,6 @@
 ## Icons overview
 
-Icons are used to visually distinguish devices in the app in most of the device listing tables and the [network tree](/docs/NETWORK_TREE.md). Currently only free [Font Awesome](https://fontawesome.com/search?o=r&m=free) icons (up-to v 6.4.0) are supported (I have an unblockable [sponsorship goal](https://github.com/sponsors/jokob-sk) to add the material design icon pack).  
+Icons are used to visually distinguish devices in the app in most of the device listing tables and the [network tree](/docs/NETWORK_TREE.md). Currently only free [Font Awesome](https://fontawesome.com/search?o=r&m=free) icons (up-to v 6.4.0) are supported.
 
 ![Raspberry Pi with a brand icon](/docs/img/ICONS/devices-icons.png)
 
@@ -8,6 +8,8 @@ Icons are used to visually distinguish devices in the app in most of the device
 
 You can assign icons individually on each device in the Details tab.
 
+![preview](/docs/img/ICONS/device_icons_preview.gif)
+
 ![Raspberry Pi device details](/docs/img/ICONS/device-icon.png)
 
 - You can click into the `Icon` field or click the Pencil (2) icon in the above screenshot to enter any text. Only [free Font Awesome](https://fontawesome.com/search?o=r&m=free) icons in the following format will work: