message: Fix svg mimes not being saved correctly
diff: @@ -292,7 +292,8 @@ fn correct_mime(mime: &str, file_path: &Path) -> Result<String> {
  Some("json") => "application/json",
  _ => mime
  }
  - }
  + },
  + "image/svg" => "image/svg+xml",
  _ => mime
  }.to_owned())
  }
  