Feature/date picker (#238)

- Date range picker for tournaments.

- Resets date when closing picker

- tRPC and Jotai update

src/server/trpc.ts

@@ -1,6 +1,5 @@
 import { initTRPC } from "@trpc/server";
 import superjson from "superjson";
-import { z } from "zod";
 
 const t = initTRPC.create({
   transformer: superjson,