removed mkbackup script, refactored all script files to use pkgs.writeShellApplication rather than pkgs.writeShellScriptBin

modules/home/scripts/wm-controls/s_check.nix

@@ -1,9 +1,11 @@
 {
-  self,
   pkgs,
 }:
-pkgs.writeShellScriptBin "scheck" ''
-  #!/run/current-system/sw/bin/bash
+pkgs.writeShellApplication {
+  name = "scheck";
+  text = ''
+    #!/run/current-system/sw/bin/bash
 
-  [ "$SOUNDS_ENABLED" -eq 1 ]
-''
+    [ "$SOUNDS_ENABLED" -eq 1 ]
+  '';
+}