Fix recursive copy while bundling

[ealmloff]

This PR changes dx bundle to copy individual assets instead of the whole dist directory to avoid recursively copying into itself

Fixes #2239

[SadCl0wn]

I tested this PR, and it does resolve the infinite copy.
But I now get this error tauri-apps/tauri#8929 when building the appimage
and I need to manually delete the folder dist/bundle between tries as the script get:

thread 'main' panicked at packages/cli/src/cli/bundle.rs:218:13:
Failed to bundle project: IoError(
    Os {
        code: 13,
        kind: PermissionDenied,
        message: "Permission denied",
    },
)

even thought the permission looked alright drwxr-xr-x@ - sadclown 21 mai 09:35 bundle (and the subfolders are the same).
I think the issue is that the bundle is in out_dir and there is no filter at packages/cli/src/cli/bundle.rs:163:31
tauri would delete the bundle folder content if it weren't in the bundle_settings.resources_map.
I got stuck on this when I tried to fix this issue myself ^^', that is why I didn't open a PR.

[jkelleyrtp]

I tested this PR, and it does resolve the infinite copy. But I now get this error tauri-apps/tauri#8929 when building the appimage and I need to manually delete the folder dist/bundle between tries as the script get:

thread 'main' panicked at packages/cli/src/cli/bundle.rs:218:13:
Failed to bundle project: IoError(
    Os {
        code: 13,
        kind: PermissionDenied,
        message: "Permission denied",
    },
)

even thought the permission looked alright drwxr-xr-x@ - sadclown 21 mai 09:35 bundle (and the subfolders are the same). I think the issue is that the bundle is in out_dir and there is no filter at packages/cli/src/cli/bundle.rs:163:31 tauri would delete the bundle folder content if it weren't in the bundle_settings.resources_map. I got stuck on this when I tried to fix this issue myself ^^', that is why I didn't open a PR.

I'm going to merge this PR and then open this as an issue - it could be an issue with the app image bundler that we need to do some upgrades to fix.