opencode native 0.5.3

Added

• Timelines of the window, with TOOLKIT_DEVTOOLS=<port> and gui_toolkit's tools/cdp.mjs: a run kept whole, each
  action with its time and a picture, as one page to share, then played back and compared (gui_toolkit 0.56).

Fixed

• Screen readers: the images of a conversation had no name, and were not announced at all.
• A screenshot over the DevTools Protocol took two seconds and froze the window; 66 ms now, measured on a window of
  2310x1505 (gui_toolkit 0.56.1).

Windows 10 and 11 (x64): one executable; run it, or install it for your user from its Setup (title bar menu > Setup...).
Linux (x64): the archive holds one program; run it, or ./opencode-native --install (an entry in the applications menu). Needs Vulkan, libxkbcommon, fontconfig, Wayland or X11.

It finds the opencode server of the computer by itself (another one: --url, or the status bar's server menu).