reset field validation on close

src/lib/components/inference-playground/custom-model-config.svelte

@@ -45,6 +45,7 @@
 			setTimeout(() => {
 				dialog?.close();
 				clear();
+				endpointValidation.reset();
 			}, 250);
 		}
 	});

src/lib/utils/form.svelte.ts

@@ -27,6 +27,10 @@ export function createFieldValidation(args: CreateFieldValidationArgs) {
 		get msg() {
 			return msg;
 		},
+		reset() {
+			valid = true;
+			msg = undefined;
+		},
 		attrs: {
 			onblur,
 			oninput,