Update Modus Themes to v0.0.4 (#1866)

Hi, this PR bumps Modus Themes to v0.0.4. The release page is here
https://github.com/vitallium/zed-modus-themes/releases/tag/v0.0.4 but
here is the list of changes at your convenience:

## Added

- [Add `drop_target`
color](vitallium/zed-modus-themes@49eaac3)
- [Add tritanopia
variants](vitallium/zed-modus-themes@bcd3df9)
- [Add deuteranopia
variants](vitallium/zed-modus-themes@4bb89a7)

## Changed

- Synced all theme colors with the upstream

## Fixed

- [Fix terminal colors for Modus
Operandi](vitallium/zed-modus-themes@7a9c6dc)

Thanks!

extensions.toml

@@ -900,7 +900,7 @@ version = "0.1.4"
 
 [modus-themes]
 submodule = "extensions/modus-themes"
-version = "0.0.3"
+version = "0.0.4"
 
 [monokai-reversed]
 submodule = "extensions/monokai-reversed"