[Bug] Fix improper locking on Windows WSL1 environments #2497
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Straight forward backport of bitcoin#15782 and bitcoin#18700 to address a bug in WSL1 environments that results in improper locking behavior; ie, a directory lock is not made exclusive as intended, thus resulting in multiple instances of the wallet/daemon being able to access the same datadir simultaneously instead of erroring out due to a locking conflict as intended.
This is specific to WSL1 environments, as WSL2 (not yet fully supported/documented), standard linux, and macOS environments behave as intended.