typing: refresh every 2s

src/matrix_harness.zig

@@ -164,10 +164,10 @@ fn typingKeepalive() void {
     const io = typing_io orelse return;
     const pa = std.heap.page_allocator;
     while (turn_busy.load(.acquire)) {
-        matrix.setTyping(pa, io, typing_token, typing_uid, typing_room, true, 60000);
+        matrix.setTyping(pa, io, typing_token, typing_uid, typing_room, true, 10000);
         var slept: u32 = 0;
-        while (slept < 45_000 and turn_busy.load(.acquire)) : (slept += 500) {
-            io.sleep(.{ .nanoseconds = 500 * std.time.ns_per_ms }, .real) catch {};
+        while (slept < 2_000 and turn_busy.load(.acquire)) : (slept += 250) {
+            io.sleep(.{ .nanoseconds = 250 * std.time.ns_per_ms }, .real) catch {};
         }
     }
     matrix.setTyping(pa, io, typing_token, typing_uid, typing_room, false, 0);