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/sway/sway.nix

@@ -22,9 +22,9 @@ let
   sway-conf = builtins.readFile ./sway.conf + ''
     exec swaybg -m center -c 252525 -i ~/.wallpaper.png
   '';
-  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; };
+  # };
   apache-ds-pin = import (builtins.fetchTarball {
     url = "https://github.com/NixOS/nixpkgs/archive/9aec01027f7ea2bca07bb51d5ed83e78088871c1.tar.gz";
   }) {};
@@ -44,10 +44,7 @@ in {
   hardware.graphics.extraPackages = [ pkgs.amdvlk ];
   environment.variables.VK_ICD_FILENAMES = "/run/opengl-driver/share/vulkan/icd.d/amd_icd64.json";
 
-  hardware.pulseaudio.support32Bit = true;
-
   hardware.sane.enable = true;
-  hardware.pulseaudio.enable = false;
 
   virtualisation.virtualbox.host.enable = true;
   users.extraGroups.vboxusers.members = [ "dominik" ];
@@ -79,13 +76,13 @@ in {
     apache-ds-pin.apache-directory-studio
     rofi-rbw-wayland
     # TODO: remove at 25.05
-    unstable.cryptomator
+    cryptomator
     fontforge
     hypnotix
 
-    unstable.code-cursor
-    unstable.windsurf
-    unstable.codex
+    code-cursor
+    windsurf
+    codex
     # vscode-insiders
     # unstable.vscode-fhs
 
@@ -97,7 +94,7 @@ in {
     freecad
     openscad
 
-    (unstable.where-is-my-sddm-theme.override {
+    (where-is-my-sddm-theme.override {
       themeConfig.General = {
         showUsersByDefault = true;
         background = "/nix/persist/system/wallpaper.png";
@@ -169,7 +166,7 @@ in {
     xorg.libXcursor
     xorg.libXi
     xorg.libXrandr
-    yubikey-manager-qt
+    yubioath-flutter
   ];
 
   programs.light.enable = true;
@@ -178,7 +175,8 @@ in {
     noto-fonts
     noto-fonts-cjk-sans
     noto-fonts-emoji
-    nerdfonts
+    nerd-fonts._0xproto
+    nerd-fonts.droid-sans-mono
   ];
 
   security.rtkit.enable = true;