Add command-line symlinks with simplified names feature

[NotCorpe]

This PR adds two new features to facilitate the use of integrated AppImages from the terminal:

1. Creation of symbolic links in ~/.local/bin for integrated AppImages, allowing them to be launched from the terminal.
2. Use of simplified names for these links (like "cursor" instead of "Cursor-0_48_9-x86_64_0ec6c12a061af79a840403cc4b4ab235").

The new features include:

• Configurable options in the settings user interface
• Logic for handling name conflicts (with numeric suffixes)
• Automatic synchronization of links when integrating/disintegrating AppImages
• Verification of ~/.local/bin presence in PATH

These features have been successfully tested with several AppImages (Cursor, Krita, Audacity).