Improve desktop icon quality and generation

This commit refactors the icon and logo generation process by replacing
multiple dependencies with ImageMagick. This simplifies the build
process and enhances maintainability.

Key changes:

- Remove unnecessary icon files for macOS (.icns) and Linux
  (size-specific PNGs). Electron-builder can now auto-generate these
  from a single `logo.png` starting from version 19.54.0, see:
  - electron-userland/electron-builder#1682
  - electron-userland/electron-builder#2533
- Retain `ico` generation with multiple sizes to fix pixelated/bad
  looking icons on Windows, see:
  - electron-userland/electron-builder#7328
  - electron-userland/electron-builder#3867
- Replaced `svgexport`, `icon-gen`, and `electron-icon-builder`
  dependencies with ImageMagick, addressing issues with outdated
  dependencies and unreliable CI/CD builds.
- Move electron-builder build resources to
  `src/presentation/electron/build` for better project structure.
- Improve `electron-builder` configuration file by making it
  importable/reusable without prebuilding the Electron application.

src/presentation/electron/build/README.md

@@ -0,0 +1,13 @@
+# build
+
+This folder is the *build resources directory* [1] and contains files used by electron-build to
+create the desktop version of the application.
+
+Generate icons from the main logo file.
+Do not modify these icons manually.
+For more details, see the [related documentation](./../../../../img/README.md).
+
+The electron-builder [1] uses these files, as specified in the [configuration file](./../../../../electron-builder.cjs).
+
+For more information on icons in electron-builder,
+visit [Icons - electron-builder | www.electron.build](https://web.archive.org/web/20240501103645/https://www.electron.build/icons.html).