Find flatpak steam location (#136)

Author: PhilipK

src/steam/utils.rs

@@ -128,13 +128,14 @@ pub fn get_default_location() -> Result<String, Box<dyn Error + Sync + Send>> {
     #[cfg(target_os = "linux")]
     let path_string = {
         let home = std::env::var("HOME")?;
-        String::from(
-            Path::new(&home)
+        let default_path = Path::new(&home)
                 .join(".steam")
-                .join("steam")
-                .to_str()
-                .unwrap_or(""),
-        )
+                .join("steam");
+            if default_path.exists(){
+                default_path.to_string_lossy().to_string()
+            }else{
+                Path::new(&home).join(".var").join("app").join("com.valvesoftware.Steam").join(".steam").join("steam").to_string_lossy().to_string()
+            }
     };
     #[cfg(target_os = "macos")]
     let path_string = {