Feature/date picker (#238)

- Date range picker for tournaments.

- Resets date when closing picker

- tRPC and Jotai update

src/types.ts

@@ -51,6 +51,7 @@ export type Tournament = {
   url: string;
   timeControl: TimeControl;
   date: string;
+  isoDate: string;
   latLng: LatLngLiteral;
   norm: boolean;
   pending: boolean;
@@ -78,6 +79,8 @@ export type ResponseMessage = {
   message: string;
 };
 
+export type DatePickerDirection = "horizontal" | "vertical";
+
 export type ScrollableElement = Window | HTMLElement;
 
 // Prettify takes a type as its argument and returns a new type that has the same properties as the original type,