Added configuration panel datasets, back-end refactor and others

app/Models/SimplePerceptron.php

@@ -10,7 +10,7 @@ class SimplePerceptron extends Perceptron {
         parent::__construct($synaptic_weights);
     }
 
-    protected function activationFunction(float $weighted_sum): int
+    public function activationFunction(float $weighted_sum): int
     {
         return $weighted_sum >= 0 ? 1 : 0;
     }