H4ck's model and textures update

[saugon]

Closes #1845

Motivation

There is a new version of the model and textures for H4ck.

Summary of changes

• Added new model.
• Added new textures.
• Updated the material.
• Updated in-game and ui prefabs (and theirs references).
• Animation controller minor fix.

How has this been tested?

• H4ck's textures are the new ones (check reference).
• The model is working properly in the UI.
• The model is working properly in game.

Reference

https://github.com/lambdaclass/champions_of_mirra/assets/145453767/f767f21e-983b-4b8c-8fd8-d86a8e8fe2ca

Checklist

• [x] I have tested the changes locally.
• [x] I have tested the whole game after applying the changes, not only the affected areas.
• [ ] I self-reviewed the changes on GitHub, line by line.
• [x] I have tested the changes in another devices.
  • [ ] Tested in iOS.
  • [x] Tested in Android.
• [ ] This change requires new documentation.
  • [ ] Documentation has been added/updated.

[tkz00]

I've tested it on my android device, it works and looks good!

[tkz00]

One issue that was found is H4ck's slingshot is floating detached from it's hand during it's defeat animation in the end game splash screen.

https://github.com/lambdaclass/champions_of_mirra/assets/67983386/9b2c0b67-087e-4d8c-a841-1d8d913da30c

[saugon]

One issue that was found is H4ck's slingshot is floating detached from it's hand during it's defeat animation in the end game splash screen. Screen.Recording.2024-06-18.at.1.01.51.PM.mov

This is a known bug (related to the model/animation) that will be fixed in a future PR.