Supersedes #767

This approach follows a similar approach to Biome, where we still rely on downloading bundled versions, but with a better interface.

By default, we look for a StyLua binary on the PATH (Closes #527). This can be disabled with stylua.searchBinaryOnPATH.

The stylua binary lookup works in the following order:

1. Use stylua.styluaPath if specified
2. Lookup in the PATH environment variable for a binary if stylua.useBinaryFromPATH is enabled (default: true)
3. Fall back to a bundled version of stylua

StyLua is commonly managed by other tools such as Aftman/Foreman, or a system installation. Step (2) means that we will use the same version that a user has on the command line to run stylua. This means the version will always remain in sync

If there is no StyLua binary available, we use a bundled extension like before, with a few updates:

• Display a "bundled" status in the status bar
• Improve prompt on new updates. It is now a status bar button notifying of an update. This info can also be hidden.
• Better support stylua.targetReleaseVersion:
  • If set, provide a specific notification if the installed version does not match
  • Show latest update notification via status bar (Closes Add extension configuration for latest version notification  #216)

Also, if the stylua binary found on the PATH fails to execute (e.g., aftman managed but not in aftman.toml), we gracefully fall back to the bundled version