[BUG] Unable to open Database file on Windows 10

[matthme]

Describe the bug
Genesis fails on Windows 10 with the following error:

Conductor returned an error while using a ConductorApi: GenesisFailed { errors: [(CellId(DnaHash(uhC0kBqyrNzeWnX1RU_fC5Jny4SAv5sw3Xff1TTyPtlJxtWXY9OcN), AgentPubKey(uhCAkp9zyG164j6029CS0hhQXsdu3PncFr5TkbfeN66UZv-lNu-HP)), DatabaseError(SqliteError(SqliteFailure(Error { code: CannotOpen, extended_code: 14 }, Some("unable to open database file: C:\\Users\\Matthias\\AppData\\Roaming\\holochain-launcher-electron\\0.300.0-alpha.1\\default\\holochain\\0.3.0-beta-dev.48\\dbs\\databases\\authored\\authored-uhC0kBqyrNzeWnX1RU_fC5Jny4SAv5sw3Xff1TTyPtlJxtWXY9OcN-uhCAkp9zyG164j6029CS0hhQXsdu3PncFr5TkbfeN66UZv-lNu-HP.sqlite3"))))), (CellId(DnaHash(uhC0kyMpkuK_eeMGIvT1IOqxEJfXCxg2ICwhADZfsMT3jRAwkJL6C), AgentPubKey(uhCAkp9zyG164j6029CS0hhQXsdu3PncFr5TkbfeN66UZv-lNu-HP)), DatabaseError(SqliteError(SqliteFailure(Error { code: CannotOpen, extended_code: 14 }, Some("unable to open database file: C:\\Users\\Matthias\\AppData\\Roaming\\holochain-launcher-electron\\0.300.0-alpha.1\\default\\holochain\\0.3.0-beta-dev.48\\dbs\\databases\\authored\\authored-uhC0kyMpkuK_eeMGIvT1IOqxEJfXCxg2ICwhADZfsMT3jRAwkJL6C-uhCAkp9zyG164j6029CS0hhQXsdu3PncFr5TkbfeN66UZv-lNu-HP.sqlite3")))))] }

Expected behavior
The database can be opened.

System information:

• OS: Windows 10
• Holochain version 0.3.0-beta-dev.48

Steps to reproduce
Download this launcher release and run it on Windows 10.

Additional context
This issue started showing up somewhere in the 0.3.x line of holochain. I'm not quite sure where the problem is located but the same error shows up when running Moss 0.11.x in development mode on Windows and it has not shown up when Moss was still using holochain 0.2 (Moss 0.10.x) so something seems to have changed since then in holochain that affects this, even if it's an issue with file permissions.