Add manage PSA toggle, fix blank sequence triggering PSA, and clear sequencesPlayed when clearing queue/votes

[whitesoup12]

• Added a new endpoint for toggling Managed PSA from FPP (available in plugin version 1.0.6).
• Fixed issues where a blank now playing can cause PSA sequences to be triggered.
• Clearing the sequencesPlayed value (used for PSA triggers) when deleting all requests or resetting votes.

[sonarcloud[bot]]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

23.5% Coverage
0.0% Duplication

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