Feat/new UI (#153)

* wip

* feat: make forms functional

* feat: finalize pages

* chore: remove unused translations

* feat: app context

* feat: user context

* feat: finalize username login

* fix: use correct tab order in login form

* feat: add oauth logic

* chore: update readme and assets

* chore: rename docs back to assets

* feat: favicons

* feat: custom background image config option

* chore: add acknowledgements for background image

* feat: sanitize redirect URL

* feat: sanitize redirect URL on check

* chore: fix dependabot config

* refactor: bot suggestions

* fix: correctly redirect to app and check for untrusted redirects

* fix: run oauth auto redirect only when there is a redirect URI

* refactor: change select color

* fix: fix dockerfiles

* fix: fix hook rendering

* chore: remove translations cdn

* chore: formatting

* feat: validate api response against zod schema

* fix: use axios error instead of generic error in login page

frontend/src/components/ui/sonner.tsx

@@ -0,0 +1,23 @@
+import { useTheme } from "next-themes";
+import { Toaster as Sonner, ToasterProps } from "sonner";
+
+const Toaster = ({ ...props }: ToasterProps) => {
+  const { theme = "system" } = useTheme();
+
+  return (
+    <Sonner
+      theme={theme as ToasterProps["theme"]}
+      className="toaster group"
+      style={
+        {
+          "--normal-bg": "var(--popover)",
+          "--normal-text": "var(--popover-foreground)",
+          "--normal-border": "var(--border)",
+        } as React.CSSProperties
+      }
+      {...props}
+    />
+  );
+};
+
+export { Toaster };