Add configuration for Librewolf and Zen browser with privacy-focused policies

- Created Librewolf configuration in `home/programs/librewolf/system.nix` with telemetry disabled, enhanced security settings, and enforced extensions.
- Added Zen browser configuration in `home/programs/zen/default.nix` and `home/programs/zen/system.nix`, including similar privacy policies and default search engine settings.
- Introduced `hosts/home-pc/configuration.nix` for system-wide settings, including USBGuard rules and firewall configurations.
- Established `hosts/home-pc/flake.nix` to manage NixOS modules and configurations.
- Generated `hosts/home-pc/hardware-configuration.nix` for hardware-specific settings.
- Created `hosts/home-pc/home.nix` to import various user-specific applications and settings.
- Added profile picture in `hosts/home-pc/profile_picture.jpg`.
- Implemented secrets management in `hosts/home-pc/secrets/default.nix` and `hosts/home-pc/secrets/secrets.yaml` using SOPS for encryption.
- Defined user-specific variables in `hosts/home-pc/variables.nix`, including hostname, username, and locale settings.
- Added profile picture for laptop in `hosts/laptop/profile_picture.jpg`.

.editorconfig

@@ -0,0 +1,52 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Global settings
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+# JavaScript, TypeScript, Vue, and stylesheet files
+[*.{js,jsx,mjs,cjs,ts,tsx,mts,cts,vue,css,scss,sass,less,styl}]
+indent_style = tab
+indent_size = 4
+max_line_length = 100
+
+# JSON, YAML, and config files
+[*.{json,yaml,yml,toml,ini,editorconfig}]
+indent_style = tab
+indent_size = 4
+
+# Markdown files
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false
+indent_style = space
+indent_size = 2
+
+# Docker and shell scripts
+[{Dockerfile,docker-compose*.yml,*.sh,*.bash}]
+indent_style = tab
+indent_size = 4
+max_line_length = off
+
+# HTML and template files
+[*.{html,htm,ejs,hbs,liquid}]
+indent_style = tab
+indent_size = 4
+max_line_length = off
+
+# Makefiles (must use tabs)
+[Makefile]
+indent_style = tab
+indent_size = 4
+
+# Nix files (common addition for your stack)
+[*.nix]
+indent_style = tab
+indent_size = 2
+max_line_length = 100