CLI flag to open file(s) or a directory on Lichtblick

[ctw-joao-luis]

User-Facing Changes
With this feature Lichtblick users will be able to open .mcap files directly from the CLI (something that was already possible, but now its doable using the --source= parameter).
What's completely new is the ability to also pass paths to directories and Lichtblick will search for .mcap files inside of it.

Its important to note that, for now, this change will only be available for MCAP files

For instance on Windowns if you pass something like:

lichtblick.exe --source=~/Folder/mcapFile.mcap,~/Folder2/mcapFile2.mcap

Lichtblick will open both files

If you pass something like:

lichtblick.exe --source=~/Folder

Lichblick will search for any .mcap file inside that folder and try to open it.

Description

The command-line arguments are first captured in process.argv and filtered for the --source flag.
If multiple paths are specified, they are split using a comma as a delimiter and converted into absolute paths, handling home directory expansion if necessary. If more than one path is detected, they are treated as separate files and returned as a list. If only one path is provided and it is a directory, the logic attempts to extract .mcap files from it.
This ensures proper handling of both individual files and directories.

Checklist

• The web version was tested and it is running ok
• The desktop version was tested and it is running ok
• This change is covered by unit tests
• Files constants.ts, types.ts and *.style.ts have been checked and relevant code snippets have been relocated

[sonarqubecloud]

Quality Gate failed

Failed conditions
75.5% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud

[luluiz]

#373 implements the tests for the useOpenFile hook