Client examples using wlr_egl would fail with EGL_BAD_CONFIG because they need an EGL config. Set the config attribs to a non-NULL value to make sure wlr_egl creates an EGL config. Fixes: 037710b1d4 ("render/egl: support config-less wlr_egl")
037710b1d4
The Wayland EGL platform doesn't have visuals.
wl_display_roundtrip already takes care of dispatching the display.
On left mouse button click, locks the cursor and renders relative motion events.
