separate dev and production instances and add visual indicators of dev mode

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "creddy"
-version = "0.6.0"
+version = "0.6.1"
 description = "A friendly AWS credentials manager"
 authors = ["Joseph Montanaro"]
 license = ""
@@ -49,7 +49,6 @@ chacha20poly1305 = { version = "0.10.1", features = ["std"] }
 which = "4.4.0"
 windows = { version = "0.51.1", features = ["Win32_Foundation", "Win32_System_Pipes"] }
 time = "0.3.31"
-tauri-plugin-single-instance = "2.0.0-beta.9"
 tauri-plugin-global-shortcut = "2.0.0-beta.6"
 tauri-plugin-os = "2.0.0-beta.6"
 tauri-plugin-dialog = "2.0.0-beta.9"