gnomeExtensions: normalize pnames

They should have gnome-shell-extension prefix like most other extension packages.
This is what other distros listed on Repology use so Repology will be able to unify them.

Exception is chrome-gnome-shell, which is estabilished under that name.

pkgs/desktops/gnome/extensions/arcmenu/default.nix

@@ -1,7 +1,7 @@
 { lib, stdenv, fetchFromGitLab, glib, gettext, substituteAll, gnome-menus }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-arcmenu";
+  pname = "gnome-shell-extension-arcmenu";
   version = "10";
 
   src = fetchFromGitLab {

pkgs/desktops/gnome/extensions/buildGnomeExtension.nix

@@ -19,7 +19,7 @@ let
   }:
 
   stdenv.mkDerivation {
-    inherit pname;
+    pname = "gnome-shell-extension-${pname}";
     version = builtins.toString version;
     src = fetchzip {
       url = "https://extensions.gnome.org/extension-data/${

pkgs/desktops/gnome/extensions/dash-to-dock/default.nix

@@ -5,7 +5,7 @@
 }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-dash-to-dock";
+  pname = "gnome-shell-extension-dash-to-dock";
   version = "69";
 
   src = fetchFromGitHub {

pkgs/desktops/gnome/extensions/dash-to-panel/default.nix

@@ -1,7 +1,7 @@
 { lib, stdenv, fetchFromGitHub, glib, gettext }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-dash-to-panel";
+  pname = "gnome-shell-extension-dash-to-panel";
   version = "40";
 
   src = fetchFromGitHub {

pkgs/desktops/gnome/extensions/emoji-selector/default.nix

@@ -1,7 +1,7 @@
 { lib, stdenv, fetchFromGitHub, glib, gettext }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-emoji-selector";
+  pname = "gnome-shell-extension-emoji-selector";
   version = "19";
 
   src = fetchFromGitHub {

pkgs/desktops/gnome/extensions/freon/default.nix

@@ -1,7 +1,7 @@
 { lib, stdenv, fetchFromGitHub, glib }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-freon";
+  pname = "gnome-shell-extension-freon";
   version = "40";
 
   uuid = "freon@UshakovVasilii_Github.yahoo.com";

pkgs/desktops/gnome/extensions/gsconnect/default.nix

@@ -18,7 +18,7 @@
 }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-gsconnect";
+  pname = "gnome-shell-extension-gsconnect";
   version = "46";
 
   outputs = [ "out" "installedTests" ];

pkgs/desktops/gnome/extensions/impatience/default.nix

@@ -1,7 +1,7 @@
 { lib, stdenv, fetchFromGitHub, glib }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-impatience";
+  pname = "gnome-shell-extension-impatience";
   version = "unstable-2019-09-23";
 
   src = fetchFromGitHub {

pkgs/desktops/gnome/extensions/noannoyance/default.nix

@@ -3,7 +3,7 @@
 , fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
-  pname = "noannoyance";
+  pname = "gnome-shell-extension-noannoyance";
   version = "unstable-2021-01-17";
 
   src = fetchFromGitHub {

pkgs/desktops/gnome/extensions/system-monitor/default.nix

@@ -1,7 +1,7 @@
 { lib, stdenv, substituteAll, fetchFromGitHub, glib, glib-networking, libgtop, gnome }:
 
 stdenv.mkDerivation rec {
-  pname = "gnome-shell-system-monitor";
+  pname = "gnome-shell-extension-system-monitor";
   version = "unstable-2021-05-04";
 
   src = fetchFromGitHub {