Add real stock price values on chart

[hikasap]

Previously, the stock chart used randomly generated data for visualization, which was not reflective of real market data. This update fetches actual stock price data from the API, allowing for more accurate and meaningful stock charts. This change will improve the user experience by providing real-time data visualization, helping users track stock prices and trends.

Key Changes:

• Stock Data Fetching: Replaced random data generation with an API call to fetch historical stock data based on selected time periods (1D, 1W, 1M, 1Y).
• State Management: Simplified state management by removing unnecessary data generation logic and relying entirely on the fetched API data for chart rendering.
• Chart Rendering: Integrated the fetched data into the chart rendering logic using the lightweight-charts library.
• Code Cleanup: Removed unused functions and unnecessary state variables to improve readability and maintainability of the code.

Screenshots:

[m-erkam]

Stock prices are fetched correctly and shown in the linechart nicely. I am merging the pr