Read description for changes

- Moved popup css code to globals
- Invoked rust code with download stuff
- Invoke the main script with progress
- Move popup code to `main.tsx`
- Don't use Strict Mode
- Made sidebar downloads menu do something
- And more

src-tauri/Cargo.toml

@@ -17,4 +17,5 @@ tauri-plugin-opener = "2.4.0"
 serde = { version = "1.0.219", features = ["derive"] }
 serde_json = "1.0.141"
 tauri-plugin-os = "2.3.0"
+base64 = "0.22.1"