linux: Remove inode/directory from supported MIME types (#16940)

At the moment Zed is handled as default file browser which causes
applications like RustRover to open Zed when instead it should open the
Gnome files app. And Zed is probably not intended to be an replacement
to the Gnome files app for example.

I'm also currently waiting to fix the issue that Zed is not displayed as
an "Application" when using "Open with..." on Arch Linux. Which is
caused by not setting `APP_ARGS` which should have the value `%F`

Release Notes:

- Fixed: Zed will no longer be handled as default file browser

crates/zed/resources/zed.desktop.in

@@ -10,7 +10,7 @@ Exec=$APP_CLI $APP_ARGS
 Icon=$APP_ICON
 Categories=Utility;TextEditor;Development;IDE;
 Keywords=zed;
-MimeType=text/plain;application/x-zerosize;inode/directory;x-scheme-handler/zed;
+MimeType=text/plain;application/x-zerosize;x-scheme-handler/zed;
 Actions=NewWorkspace;
 
 [Desktop Action NewWorkspace]