nostrscript: add a helper function

nostrscript/nostr.ts

@@ -24,6 +24,7 @@ enum Command {
 declare function nostr_log(log: string): void;
 declare function nostr_cmd(cmd: i32, val: i32, len: i32): i32;
 declare function nostr_pool_send_to(req: string, req_len: i32, to: string, to_len: i32): void;
+declare function nostr_set_bool(key: string, key_len: i32, val: i32): i32;
 
 export function pool_send(req: string): void {
 	nostr_cmd(Command.POOL_SEND, changetype<i32>(req), req.length)
@@ -52,6 +53,10 @@ export function event_get_note(ev: Event): Note {
 	return nostr_cmd(Command.EVENT_GET_NOTE, ev, 0)
 }
 
+export function set_bool_setting(setting: string, value: boolean): i32 {
+	return nostr_set_bool(setting, setting.length, value)
+}
+
 export function note_get_kind(note: Note): u32 {
 	if (!note) return 0;
 	return nostr_cmd(Command.NOTE_GET_KIND, note, 0);