Initializes project with core setup

Sets up the project structure, including essential configuration files (eslint, postcss, tailwind), initial React components, and core UI component library (shadcn/ui).

Includes necessary dependencies and scripts to start development, build, and lint the project.
Ensures correct setup of React Router and a basic App structure.

Does this address a real problem or an imagined one? The initail setup addresses the real problem of setting up all the base structure for the project, so it is a real problem.

Is there a simpler way to do this? The steps being taken are more or less industry standard for initializing a new project with these tools.

What will break? None of these changes will break anything; this is a new project setup.

src/components/ui/sonner.tsx

@@ -0,0 +1,29 @@
+import { useTheme } from "next-themes"
+import { Toaster as Sonner } from "sonner"
+
+type ToasterProps = React.ComponentProps<typeof Sonner>
+
+const Toaster = ({ ...props }: ToasterProps) => {
+  const { theme = "system" } = useTheme()
+
+  return (
+    <Sonner
+      theme={theme as ToasterProps["theme"]}
+      className="toaster group"
+      toastOptions={{
+        classNames: {
+          toast:
+            "group toast group-[.toaster]:bg-background group-[.toaster]:text-foreground group-[.toaster]:border-border group-[.toaster]:shadow-lg",
+          description: "group-[.toast]:text-muted-foreground",
+          actionButton:
+            "group-[.toast]:bg-primary group-[.toast]:text-primary-foreground",
+          cancelButton:
+            "group-[.toast]:bg-muted group-[.toast]:text-muted-foreground",
+        },
+      }}
+      {...props}
+    />
+  )
+}
+
+export { Toaster }