[15.1.0 regression] Twitter sheets have incorrect dimensions and misplaced emoji

[andersk]

The Twitter emoji sheets were not correctly updated with the Apple, Facebook, and Google sheets for the 15.1.0 release. As a result, they are misaligned with the current sheet_x and sheet_y data and cannot be used for correct emoji display in 15.1.0 and 15.1.1.

Re-running php build/build_image.php generates correct sheets, so that step must have been partially skipped for these releases.

✔️ Sheets from v15.0.1:

Apple, 1098×1098	Facebook, 1098×1098	Google, 1098×1098	Twitter, 1098×1098

❌ Sheets from v15.1.0:

Apple, 1116×1116	Facebook, 1116×1116	Google, 1116×1116	Twitter, 1098×1098

❌ Sheets from v15.1.1:

Apple, 1116×1116	Facebook, 1116×1116	Google, 1116×1116	Twitter, 1098×1098

✔️ Sheets from v15.1.1 after re-running php build/build_image.php:

Apple, 1116×1116	Facebook, 1116×1116	Google, 1116×1116	Twitter, 1116×1116