Add new server modules and configurations for various services

- Introduced `default-creds` module for managing default credentials with Umami integration.
- Added `fail2ban` module for brute-force attack protection with configurable ban times.
- Created `firewall` module to enable and configure basic firewall settings.
- Implemented `gitea` module for self-hosted Git service with PostgreSQL backend.
- Developed `glance` module for a customizable dashboard with various widgets and themes.
- Added `iknowyou` module for a self-hosted password manager with production and demo environments.
- Introduced `kernel-hardening` module for enhancing kernel security settings.
- Created `mazanoke` module for a simple web application with Nginx integration.
- Added `mealie` module for a self-hosted meal planning application.
- Implemented `stirling-pdf` module for PDF generation service.
- Developed `umami` module for self-hosted analytics with secret management.
- Added `ssh` module for secure SSH configuration with user restrictions.
- Introduced `nixy` theme for a customized aesthetic experience across services.

home/programs/nvf/default.nix

@@ -0,0 +1,33 @@
+{
+  inputs,
+  pkgs,
+  config,
+  ...
+}: let
+  c = config.lib.stylix.colors;
+in {
+  imports = [inputs.nvf.homeManagerModules.default];
+  programs.nvf = {
+    enable = true;
+    settings = {
+      vim.luaConfigRC.hl-overrides = ''
+        local function apply_hl()
+          vim.api.nvim_set_hl(0, "MiniStarterHeader",   { fg = "#${c.base0D}", bold = true })
+          vim.api.nvim_set_hl(0, "SnacksPickerBorder",  { fg = "#${c.base0D}" })
+          vim.api.nvim_set_hl(0, "SnacksPickerTitle",   { fg = "#${c.base0D}", bold = true })
+        end
+        apply_hl()
+        vim.api.nvim_create_autocmd("ColorScheme", { pattern = "*", callback = apply_hl })
+      '';
+      imports = [
+        ./options.nix
+        ./languages.nix
+        ./picker.nix
+        ./snacks.nix
+        ./keymaps.nix
+        ./utils.nix
+        ./mini.nix
+      ];
+    };
+  };
+}