Show native save dialogs in desktop app #50, #264

This commit introduces native operating system file dialogs in the
desktop application replacing the existing web-based dialogs.

It lays the foundation for future enhancements such as:

- Providing error messages when saving or executing files, addressing
  #264.
- Creating system restore points, addressing #50.

Documentation updates:

- Update `desktop-vs-web-features.md` with added functionality.
- Update `README.md` with security feature highlights.
- Update home page documentation to emphasize security features.

Other supporting changes include:

- Integrate IPC communication channels for secure Electron dialog API
  interactions.
- Refactor `IpcRegistration` for more type-safety and simplicity.
- Introduce a Vue hook to encapsulate dialog functionality.
- Improve errors during IPC registration for easier troubleshooting.
- Move `ClientLoggerFactory` for consistency in hooks organization and
  remove `LoggerFactory` interface for simplicity.
- Add tests for the save file dialog in the browser context.
- Add `Blob` polyfill in tests to compensate for the missing
  `blob.text()` function in `jsdom` (see jsdom/jsdom#2555).

Improve environment detection logic:

- Treat test environment as browser environments to correctly activate
  features based on the environment. This resolves issues where the
  environment is misidentified as desktop, but Electron preloader APIs
  are missing.
- Rename `isDesktop` environment identification variable to
  `isRunningAsDesktopApplication` for better clarity and to avoid
  confusion with desktop environments in web/browser/test environments.
- Simplify `BrowserRuntimeEnvironment` to consistently detect
  non-desktop application environments.
- Improve environment detection for Electron main process
  (electron/electron#2288).

docs/desktop-vs-web-features.md

@@ -53,9 +53,16 @@ Log file locations vary by operating system:
 The desktop version of privacy.sexy enables direct script execution, providing a seamless and integrated experience.
 This direct execution capability isn't available in the web version due to inherent browser restrictions.
 
+**Logging and storage:**
+
 For enhanced auditability and easier troubleshooting, the desktop version keeps a record of executed scripts in designated directories.
 These locations vary based on the operating system:
 
 - macOS: `$HOME/Library/Application Support/privacy.sexy/runs`
 - Linux: `$HOME/.config/privacy.sexy/runs`
 - Windows: `%APPDATA%\privacy.sexy\runs`
+
+**Native file system dialogs:**
+
+The desktop version uses native system file save dialogs, offering more features and reliability compared to the browser's file system dialogs.
+These native dialogs provide a more integrated and user-friendly experience, aligning with the operating system's standard interface and functionalities.