Made the app more robust and updated the quickstart docs

Author: cloutiertyler

crates/bindings-typescript/src/lib/identity.ts

@@ -55,4 +55,11 @@ export class Identity {
   static fromString(str: string): Identity {
     return new Identity(str);
   }
+
+  /**
+   * Zero identity (0x0000000000000000000000000000000000000000000000000000000000000000)
+   */
+  static zero(): Identity {
+    return new Identity(0n);
+  }
 }

crates/bindings-typescript/src/react/index.ts

@@ -1,3 +1,3 @@
 export * from './SpacetimeDBProvider.ts';
 export { useSpacetimeDB } from './useSpacetimeDB.ts';
-export { useTable } from './useTable.ts';
+export { useTable, where, eq } from './useTable.ts';