Update docs and such for 1st Gen and big 4th Gen support

alsa-scarlett-gui.spec.template

@@ -1,4 +1,4 @@
-Summary: ALSA Scarlett Gen 2/3 Control Panel
+Summary: ALSA Scarlett Control Panel
 Name: alsa-scarlett-gui
 Version: VERSION
 Release: 1%{?dist}
@@ -9,7 +9,7 @@ Source: %{name}-%{version}.tar.gz
 %description
 
 alsa-scarlett-gui is a Gtk4 GUI for the ALSA controls presented by the
-Linux kernel Focusrite Scarlett2 Mixer Driver.
+Linux kernel Focusrite USB drivers.
 
 %prep
 %setup