Skippable everything, new game page design and minor updates

Today I managed to finish the new game page design, and from now on, everything is skippable in the game.

For now, the updates have been made in the WINDOWS, LINUX, and MAC OS versions.

UPDATE DETAILS (Windows, Linux, macOS):

- All transitions, videos, podcasts, CG, and mini games can be skipped.

- Proofreading and correction of spelling errors have been done (I welcome any feedback regarding any remaining errors).

- Added a loading screen while the Ren'Py script loads.

ANDROID VERSION EXPECTED ON 05.28.