add default sdk path on windows

Author: HJfod

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "geode"
-version = "1.0.3"
+version = "1.0.4"
 authors = ["HJfod <[email protected]>", "Camila314 <[email protected]>"]
 edition = "2021"
 build = "build.rs"

Cargo.toml

@@ -335,13 +335,15 @@ pub fn subcommand(config: &mut Config, cmd: Sdk) {
 				}
 			}
 
-			let default_path = if cfg!(target_os = "macos") {
+			install(config, path.unwrap_or(if cfg!(target_os = "macos") {
 				PathBuf::from("/Users/Shared/Geode/sdk")
 			} else {
-				todo!();
-			};
-
-			install(config, path.unwrap_or(default_path));
+				dirs::document_dir()
+					.nice_unwrap(
+						"No default path available! \
+						Please provide a path manually"
+					).join("Geode")
+			}));
 		},
 		Sdk::Uninstall => { uninstall(config); },
 		Sdk::Update { branch } => update(config, branch),