Prepare for switching back to unstable

hosts/lemp11/configuration.nix

@@ -65,7 +65,6 @@
   services.printing.enable = true;
 
   # Enable sound with pipewire.
-  sound.enable = true;
   hardware.pulseaudio.enable = false;
   security.rtkit.enable = true;
   services.pipewire = {

lib/nixos/configuration.nix

@@ -103,7 +103,6 @@ in
   services.printing.enable = true;
 
   # Enable sound with pipewire.
-  sound.enable = true;
   hardware.pulseaudio.enable = false;
 
   security = {

lib/shared/home-manager-packages.nix

@@ -48,8 +48,8 @@ with pkgs;
   inotify-tools
   jq
   lua
+  mariadb
   mob
-  mysql
   php
   phpPackages.composer
   pv

lib/shared/modules/neovim.nix

@@ -299,7 +299,6 @@ in
       nodePackages.intelephense
       nodePackages.typescript-language-server
       nodePackages.vls
-      nodePackages.volar
       nodePackages.vscode-langservers-extracted
       nodePackages.vue-language-server
       nodePackages.yaml-language-server