fix(events): complex manualMetadata being malformed on test event button

[CKY-]

Description of the Change

complex manualMetadata eg:

       manualMetadata: {
           title: "Poll name"
           choices: {
                type: "choice-list",
                value:[
                { id: "c0113c14-144e-475c-9647-a65f9177665d", title: "Test Choice 1" },
                { id: "6d86797a-d88a-4fc2-b4f6-1895afdc503e", title: "Test Choice 2" },
                { id: "791bc06c-c4d5-4c74-b950-8596c04dbb0d", title: "Test Choice 3" }
            ]
           }
        }

being malformed on test event button
this would cause variable data to return the variable name.

Applicable Issues

#2783

Testing

made many events that leverage Enum and arbitrary data structs to see what the variable data would return in the console log
1000 Test message

Firebot,User1, User2, User3, User4, User5,

[{"id":"c0113c14-144e-475c-9647-a65f9177665d","index":1,"title":"Test Choice 1","points":62,"votes":125},{"id":"6d86797a-d88a-4fc2-b4f6-1895afdc503e","index":2,"title":"Test Choice 2","points":42,"votes":145},{"id":"791bc06c-c4d5-4c74-b950-8596c04dbb0d","index":3,"title":"Test Choice 3","points":72,"votes":85}]

Screenshots