Add servers option (no-op at the moment)

cup.schema.json

@@ -65,7 +65,18 @@
             "description": "The path to the unix socket you would like Cup to use for communication with the Docker daemon. Useful if you're trying to use Cup with Podman.",
             "type": "string",
             "minLength": 1
+        },
+        "servers": {
+            "type": "array",
+            "description": "Additional servers to connect to and fetch update data from",
+            "minItems": 1,
+            "items": {
+                "type": "string",
+                "minLength": 1
+            }
         }
     },
-    "required": ["version"]
+    "required": [
+        "version"
+    ]
 }

src/config.rs

@@ -44,6 +44,7 @@ pub struct Config {
     pub images: ImageConfig,
     pub theme: Theme,
     pub socket: Option<String>,
+    pub servers: Vec<String>,
     #[serde(skip_deserializing)]
     pub debug: bool,
 }
@@ -57,6 +58,7 @@ impl Config {
             images: ImageConfig::default(),
             theme: Theme::Default,
             socket: None,
+            servers: Vec::new(),
             debug: false,
         }
     }