fix(types): update throwOnError return type to this

Author: aarich

src/lib/types.ts

@@ -80,7 +80,7 @@ export abstract class PostgrestBuilder<T> implements PromiseLike<PostgrestRespon
    *
    * {@link https://github.com/supabase/supabase-js/issues/92}
    */
-  throwOnError(throwOnError?: boolean): PostgrestBuilder<T> {
+  throwOnError(throwOnError?: boolean): this {
     if (throwOnError === null || throwOnError === undefined) {
       throwOnError = true
     }

test/basic.ts

@@ -133,7 +133,7 @@ test('throwOnError throws errors instead of returning them', async () => {
   let isErrorCaught = false
 
   try {
-    await postgrest.from('missing_table').select().throwOnError()
+    await postgrest.from('missing_table').throwOnError().select()
   } catch (error) {
     expect(error).toMatchSnapshot()
     isErrorCaught = true