feat: link quizzes to job positions and filter candidate dashboard accordingly

app/Models/JobPosition.php

@@ -22,4 +22,9 @@ class JobPosition extends Model
     {
         return $this->hasMany(Candidate::class);
     }
+
+    public function quizzes()
+    {
+        return $this->belongsToMany(Quiz::class);
+    }
 }

app/Models/Quiz.php

@@ -19,4 +19,9 @@ class Quiz extends Model
     {
         return $this->hasMany(Question::class);
     }
+
+    public function jobPositions()
+    {
+        return $this->belongsToMany(JobPosition::class);
+    }
 }