feat: add widget preview pages (#9)

* feat: add widget definition system

* fix: wrong typecheck command in turbo generator

* chore: fix formatting

* feat: add widget preview page

* chore: fix formatting and type errors

* chore: fix from widget edit modal and remove some never casts

* chore: address pull request feedback

packages/widgets/src/weather/component.tsx

@@ -0,0 +1,7 @@
+import type { WidgetComponentProps } from "../definition";
+
+export default function WeatherWidget({
+  options,
+}: WidgetComponentProps<"weather">) {
+  return <pre>{JSON.stringify(options)}</pre>;
+}

packages/widgets/src/weather/index.ts

@@ -0,0 +1,15 @@
+import { IconCloud } from "@homarr/ui";
+
+import { createWidgetDefinition } from "../definition";
+import { opt } from "../options";
+
+export const { definition, componentLoader } = createWidgetDefinition(
+  "weather",
+  {
+    icon: IconCloud,
+    options: opt.from((fac) => ({
+      location: fac.location(),
+      showCity: fac.switch(),
+    })),
+  },
+).withDynamicImport(() => import("./component"));