devvit create icons uses backslash in asset names on Windows

[PitchforkAssistant]

When using the devvit create icons command, the name of the asset is its relative path to the assets directory. This results in the generation of assets with an escape sequence in their name in the final TS file.

As an example, consider the following assets folder structure on Windows:

assets/
    subDirectory/
        vectorLogo.svg

Running devvit create icons on Windows will result in this icons.ts file:

// This file is auto-generated by `devvit create icons`. Do not edit it directly.
import {svg} from "@devvit/public-api";

export const Icons = {
  "subDirectory\vectorLogo.svg": svg`<svg/>`
} as const;

This behavior is expected from path.relative used to get the name:

devvit/packages/cli/src/commands/create/icons.ts

Line 58 in 1ac06fd

const name = path.relative(assetsPath, asset);

Then backslash is in fact escaped there, but becomes unescaped when writing the SVGs to the icons TS file. I think the best solution would be to replace the backslashes with forward slashes, mimicking the behavior of tinyglob and making sure asset names are the same regardless of which platform you create them on.

TLDR: const name = path.relative(assetsPath, asset); should probably be const name = path.relative(assetsPath, asset).replaceAll(path.sep, '/');

[mvanhorn]

Implemented in #250 - normalizes path separators with .replaceAll(path.sep, '/'), matching the existing pattern in AssetUploader.ts.