Fix: `error: Your local changes to the following files would be overwritten by merge` when trying to update extensions in WSL2 Docker

Remove no longer necessary code from VAE selector, fix #4651

Option to use selected VAE as default fallback instead of primary option

Optional Accelerate Launch

Misc

Fix: `error: Your local changes to the following files would be overwritten by merge` when run `pull()` method,
because WSL2 Docker set 755 file permissions instead of 644, this results to the error.

Updated `Extension` class: replaced `pull()` with `fetch_and_reset_hard()` method.

Updated `apply_and_restart()` function: replaced `ext.pull()` with `ext.fetch_and_reset_hard()` function.

limit extension preload scripts to just one file named preload.py

Add option to preload extensions

Fix wrong mps fallback

Make DDIM and PLMS work on Mac OS

Fix a bug in list_files_with_name

#4448 fix checkpoint cache usage

Add username and password in ngrok

4415 update generation info

Adding optional tag shuffling for training

Add DeepDanbooru to the interrogate API