Improves notification view (#2645)
Improves notification view (#2645)

* removes hr, adds notification settings link

* adds if else to show "no notifications" or table view

* adds icon to settings button

* Fix link to notification settings

Co-authored-by: Dennis Reimann <1d6e1cf70ec6f9ab28d3ea4b27a49a77654d370e@dennisreimann.de>
btcpayserver/btcpayserver,btcpayserver/btcpayserver,btcpayserver/btcpayserver,btcpayserver/btcpayserver