Add download pausing, canceling and resuming

src-tauri/Cargo.toml

@@ -32,6 +32,7 @@ tauri-plugin-prevent-default = "4.0.4"
 openssl = { version = "0.10.75", features = ["v110", "vendored"] }
 base64 = "0.22.1"
 tauri-plugin-http = "2.5.7"
+dashmap = "6.1.0"
 
 [target.'cfg(not(any(target_os = "android", target_os = "ios")))'.dependencies]
 tauri-plugin-single-instance = "2.4.0"