build: install Diesel

Cargo.toml

@@ -7,6 +7,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+diesel = { version = "2.2.2", features = ["postgres"] }
 
 dioxus = { version = "0.5", features = ["web", "router"] }