Add More Questions for Tests (in JSON Format)

[SurajSanap]

Description: The current test section has a limited number of questions, which hampers preparation for the JLPT.
Data Path: data\Test\n5.json
Affected Functionality: Test questions rendering.

Suggested Enhancement:
Create a JSON file with structured questions (including listening, multiple-choice, and text-based questions).
Include metadata such as difficulty, question_type, correct_answer, and options.
Add a function to parse and load the JSON file dynamically.

format of quetions will be in json:

[
{
"question": "Translate the following word to English: 猫",
"options": ["Dog", "Cat", "Bird", "Fish"],
"answer": "Cat"
}
]