Fix player deletion. Add PersonaID + NucleusID fetching upon Add-Player action.

models/tracker_json.go

@@ -14,3 +14,10 @@ type Weapon struct {
 	ShotsHit   int     `json:"shotsHit"`
 	Accuracy   float64 `json:"-"`
 }
+
+type PlayerIDsJSON struct {
+	Results []struct {
+		PersonaID uint `json:"personaId"`
+		NucleusID uint `json:"nucleusId"`
+	} `json:"results"`
+}