feat: re-enable dunst, switch salut -> dunst, add&change packages

nix/home-manager/programs/espanso.nix

@@ -1,6 +1,5 @@
 {
   pkgs,
-  config,
   ...
 }: {
   services.espanso = {
@@ -8,11 +7,17 @@
     #   # src =
     # })
     enable = true;
-    settings = {
+      configs = {
+        default = {
+          # backend = "Inject";
+          # backend = "Clipboard";
+        };
+      };
       matches = let
         playerctl = ''
           ${pkgs.coreutils}/bin/env DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(${pkgs.coreutils}/bin/id -u)/bus" ${pkgs.playerctl}/bin/playerctl'';
-      in [
+      in {
+        default = { matches = [
         {
           trigger = ":vpos";
           replace = "{{output}}";
@@ -60,6 +65,7 @@
           replace = "¯\\_(ツ)_/¯";
         }
       ];
+      };
     };
   };
 }