Icons added for every visualizers and for mainLanding page

[rajan-poudel]

Hey @Soumya-Kushwaha , I have added icons for all four visualizers and for mainLanding page as well. Along that, I have followed PR guidelines as well. If I have done any mistakes , please let me know :)

Closes #104

[github-actions]

Great job, @rajan-poudel! 🎉 Thank you for submitting your pull request. Your contribution is valuable and we appreciate your efforts to improve our project.

We will promptly review your changes and offer feedback. Keep up the excellent work! Kindly remember to check our contributing guidelines

[dinxsh]

would suggest resolving conflicts before moving ahead

[jessicachawla]

resolve conflicts

[rajan-poudel]

@dinxsh & @jessicachawla Could you explain me what's the wrong in the code? I am a newbie to open source contribution so :)
I have edited only one line in five files (mainLanding.py, Intensity-vs-Frequency-and-time.py, Spectogram.py, Amplitude-Frequency-Visualizer.py & Waveform.py). And the change i did was:

[dinxsh]

there are a couple changes you'll be required fix these conflicts just dm me on discord @ dinxsh and ill guide you personally through it :)

[rajan-poudel]

Thank you so much @dinxsh :)

[dinxsh]

fix conflicts