feat: add server-only build

it's drastically faster to build,
mostly due to only including 1/10th of the dependencies

Cargo.toml

@@ -5,12 +5,23 @@ license = "AGPL-3.0-or-later"
 version = "0.1.0"
 edition = "2024"
 
+[features]
+default = [ "app" ]
+app = [ "dep:iced", "dep:smol" ]
+
 [dependencies]
 ron = "0.12.2"
-serde = "1.0.229"
-smol = "2.0.2"
 sysinfo = "0.39.6"
 
 [dependencies.iced]
 version = "0.14.0"
 features = [ "canvas", "smol" ]
+optional = true
+
+[dependencies.smol]
+version = "2.0.2"
+optional = true
+
+[dependencies.serde]
+version = "1.0.229"
+features = [ "derive" ]