fix: unsuported linux, closes #99

[EibrielInv]

What does this PR change?

Fixes #99

How to test the changes?

On Linux platform, run npm run start, the explorer should start normally

Our Code Review Standards

https://github.com/decentraland/unity-renderer/blob/master/docs/code-review-standards.md

[EibrielInv]

To clarify, app.getPath('userData') returns /home/{username}/.config/explorer-desktop-launcher/.

The files and folders saved there are:

attachments/
completed/
new/
pending/
client_id
settings.dat

That folder also stores other files and folders from the client:

blob_storage/
Cache/
Code Cache/
Crashpad/
databases/
Dictionaries/
GPUCache/
IndexedDB/
Local Storage/
renderer/
Session Storage/
WebStorage
.updaterId
Cookies
Cookies-journal
Network Persistent State
Preferences
TransportSecurity