Updating the UI and adding few things

[matmat37000]

Hi, I create this pull request for updating your projet's UI and adding few things like a Clear Installation Folder button or warning icon when using the Auto Extract.

Full Changlog:

• Changing the UI.
• Adding an Clear Installation Folder.
• Adding a label to show the latest version of Yuzu EA.
• Adding a background music with a mute button (the music is muted by default).
• Removed footer and adding a pop-up when downloading.
• The Godot Engine icon on startup is now the Pinneapple icon.
• Updating the README.md's demo images.
• I tried to include your latest commits.

I hope my update interests you and can be pushed. Great job for the installer, it's a great projet and your code is clean 👌!

Sorry if my English is bad, I'm french and I'm learning this language.

[ZachAR3]

Hi, I create this pull request for updating your projet's UI and adding few things like a Clear Installation Folder button or warning icon when using the Auto Extract.

Full Changlog:

* Changing the UI.

* Adding an _Clear Installation Folder_.

* Adding a label to show the latest version of Yuzu EA.

* Adding a background music with a mute button (the music is muted by default).

* Removed footer and adding a pop-up when downloading.

* The Godot Engine icon on startup is now the Pinneapple icon.

* Updating the README.md's demo images.

* **I tried to include your latest commits.**

I hope my update interests you and can be pushed. Great job for the installer, it's a great projet and your code is clean ok_hand!

Sorry if my English is bad, I'm french and I'm learning this language.

Sorry, I didn't see this before releasing 2.0 with an updated UI. I will go through the PR tomorrow and add anything I think fits better. Thanks for the contribution!