Fixed more compile time errors

src/service/media/data.rs

@@ -0,0 +1,8 @@
+use crate::Result;
+
+pub trait Data {
+    fn create_file_metadata(&self, mxc: String, width: u32, height: u32, content_disposition: &Option<&str>, content_type: &Option<&str>) -> Result<Vec<u8>>;
+
+    /// Returns content_disposition, content_type and the metadata key.
+    fn search_file_metadata(&self, mxc: String, width: u32, height: u32) -> Result<(Option<String>, Option<String>, Vec<u8>)>;
+}