updated the entire app.py

[sanyadureja]

Description

• In the "Why Choose Cal?" section, the content has been updated and presented in a structured card format, incorporating the new feature for Enhanced Document Analysis & Language Tools. The user interface has also been improved with the addition of icons and colors for better visual appeal.
• For the "Available Calculators" section, the calculator information is now organized in a structured format, featuring an expander for detailed insights on each calculator. The UI has been further enhanced with vibrant colors, and calculators are displayed in a two-column table layout for improved readability.
• Additionally, a "Get Started" section has been added at the bottom, along with a footer for extra information.

Issue Resolved

This PR resolves #128

Changes Made

1. Why Choose Cal? Section

• Content Update: Revised text to better highlight Cal's benefits.
• Structured Card Format: Features displayed in a card layout for clarity.
• New Feature Addition: Added Enhanced Document Analysis & Language Tools.
• Enhanced UI: Improved visuals with icons and a new color scheme.

2. Available Calculators Section

• Structured Information: Organized calculator details for easier navigation.
• Expander Feature: Implemented expanders for more info on each calculator.
• UI Enhancements: Added vibrant colors for a more attractive look.
• Table Layout: Displayed calculators in a two-column table for better comparison.

3. Get Started Section

• New Section: Added a "Get Started" section to guide users on initial steps.

4. Footer and Additional Information
   Footer Addition: Included a footer with additional links and resources for user convenience.

Additional Details

If you would want me to do some more changes, please give your meaningful suggestions.

Checklist

• [✅] My code follows the current project structure
• [✅] I have thoroughly reviewed and updated the requirements.txt file to include any new packages
• [✅] The predict.py file includes a properly implemented model_details() function, or the notebook contains this function to print a detailed model report. The model will not be accepted without this function, as it is essential for generating the necessary model details.
• [✅ ] I have added relevant tests (if necessary).
• [✅] I have added comments in the code where needed.
• [✅] This PR is submitted under Hacktoberfest.
• [✅] This PR is submitted under GirlScript Summer of Code (GSSoC-Extd).

[sanyadureja]

@yashasvini121 I've completed the issue #128 and raised the PR, please review and give your suggestions (if any).

Looking forward to getting my PR merged. Most importantly add all the labels (GSSOC, Hacktoberfest and level).
Thank you

[yashasvini121]

Great work! See if you can fix the image; if not, let me know, and I'll merge the PR.

Just make the updates in the current branch and commit them—the PR will automatically reflect the changes.

[yashasvini121]

1. Adjust the image dimensions to prevent it from occupying too much screen space, or replace it with a better alternative if available. Otherwise simply remove the gif, but don't delete the file.
2. Store all images in the assets/images folder.