Cap merged atlas pages at FORCED_MAX_TEXTURE_SIZE instead of the device
MAX_TEXTURE_SIZE (16384 on Apple Silicon), stop the link render layer
from acquiring the shared atlas with a mismatched 2048 texture size, and
reset GL texture slots of removed atlas pages to the 1x1 placeholder.
Mirrors xtermjs/xterm.js#6187, #6156 and #6306 in the addon-webgl source
patch and regenerates the runtime patch and lock hash.
Co-authored-by: FlamingoPg <1106310035@qq.com>
Explicit SGR backgrounds equal to the translucent default background, and
style-only cells (dim, italic, extended underline) in WebGL, painted an
opaque fill over the theme wallpaper. Treat them as the default background
in both the WebGL and DOM renderers; the buffer keeps the original color.
Closes#37671
Port the xterm, webgl, search, serialize and image source patches to upstream
08829c7. Where upstream fixed the same bug (#6204 mouse NaN guard, #6226 warm-up
cancel on dispose, #6235/#6237 serialize width clamp) take upstream and keep only
Orca's remaining delta (domContainer warm-up gate, clipped wide-cell blanking).
Bump mobile's webgl subset patch alongside. Drop serialize fuzz seed normal:5,
which now round-trips.
NeilandFlamingoPg