feat: add remaining styles to libvaxis renderer

src/renderer/vaxis/renderer.zig

@@ -76,7 +76,7 @@ pub fn run(self: *Self) !void {
 }
 
 pub fn render(self: *Self) !void {
-    self.vx.queueRefresh(); // FIXME: why do differential updates not work?
+    self.vx.queueRefresh(); // FIXME: differential updates may break if we overflow the output buffer and get a WouldBlock
     return self.vx.render();
 }