Fix up aerc and dunst to notify correctly

- Notify on new messages
- Ignore notifications in my RSS inbox, they're not important
- Also tweak keybinds in message view

.config/aerc/aerc.conf

@@ -16,6 +16,7 @@ sort = date
 next-message-on-delete = true
 stylesets-dirs = /home/trysdyn/.config/aerc/stylesets:/usr/share/aerc/stylesets/
 styleset-name = base16
+new-message-bell = false
 
 [viewer]
 pager = bat -p
@@ -40,3 +41,6 @@ text/* = awk -f /usr/lib/aerc/filters/plaintext
 template-dirs = /usr/share/aerc/templates/
 quoted-reply = quoted_reply
 forwards = forward_as_body
+
+[hooks]
+mail-received = notify-send -a aerc "New mail in $AERC_FOLDER from $AERC_FROM_NAME" "$AERC_SUBJECT"