add missing modules

[ioj4]

Adds the voice_filters and desktop_overlay modules that are in the manifest.
voice_filters is not on stable yet but that's fine because it just ignores the download if the version of the module is not found in the manifest:

discord-desktop-datamining/src/download.js

Lines 38 to 39 in af073dd

	version = version ?? (mod === 'host' ? manifest.full.host_version[2] : manifest.modules['discord_' + mod]?.full?.module_version);
	if (!version) return;

[CanadaHonk]

Thanks!