fix: update AI Mailer configuration, adjust polling interval, and modify logging level

feat: update NixOS channel to 25.05 and remove unused unstable imports
fix: correct keyboard layout configuration in sway
feat: update ai-mailer package source and hash

hosts/nb/modules/nvim/default.nix

@@ -1,14 +1,14 @@
 { pkgs, ... }:
 let
-  unstable = import (fetchTarball https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz) {
-    config = { allowUnfree = true; };
-  };
+  # unstable = import (fetchTarball https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz) {
+  #   config = { allowUnfree = true; };
+  # };
 in
 {
   environment.variables = { EDITOR = "vim"; };
   nixpkgs.overlays = [
       (import ./chatgpt.nix)
-      (import ./gitea.nix)
+      # (import ./gitea.nix)
   ];
 
   environment.systemPackages = with pkgs; [
@@ -23,7 +23,7 @@ in
     ripgrep
     lua
     luaPackages.lyaml
-    unstable.aider-chat
+    aider-chat
     (neovim.override {
       vimAlias = true;
       configure = {
@@ -33,7 +33,7 @@ in
             bufferline-nvim
             catppuccin-nvim
             chatgpt-nvim
-            gitea-nvim
+            # gitea-nvim
             cmp-buffer
             cmp-nvim-lsp
             cmp-path
@@ -53,7 +53,7 @@ in
             lspkind-nvim
             mini-icons
             neogit
-            null-ls-nvim
+            none-ls-nvim
             nvim-autopairs
             nvim-cmp
             nvim-colorizer-lua
@@ -75,7 +75,7 @@ in
             vim-sneak
             vim-vsnip
             which-key-nvim
-            unstable.pkgs.vimPlugins.rest-nvim
+            pkgs.vimPlugins.rest-nvim
             aider-nvim
           ];
           opt = [];