Added Angle between two lines Calculator

[AMS003010]

Fixes Issue🛠️

Closes #1123

Closes #

Description👨‍💻

I have added Angle between two lines Calculator which calculates the angle between two lines. he line equations are given as input and the angle between them is returned as output in degrees.

Type of Change📄

• [ ] Bug fix (non-breaking change which fixes a bug)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Style (non-breaking change which improves website style or formatting)
• [ ] Documentation (non-breaking change which updates or adds documentation)
• [ ] Responsiveness (non-breaking change which improves UI/UX on different screen sizes)

Checklist✅

• [x] I am an Open Source contributor
• [x] I have performed a self-review of my code
• [x] My code follows the style guidelines of this project
• [x] I have commented on my code, particularly in hard-to-understand areas

Screenshots/GIF📷

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[Nihal4777]

@AMS003010 Fix the issue in main index.html file.

[Rakesh9100]

Why the files of Frames-Timecode-Calculator is showing, fix the conflict in this same PR @AMS003010

[AMS003010]

Sorry got caught up, I'll fix it by today

[AMS003010]

@Rakesh9100 Sorry for the delay 😅

I have fixed all changes and fixed all issues. I have reviewed and made sure that there are no issues.