AutoBuild update 1.2.7+1.21.11

• Added a Place Sounds setting to enable or disable block placement sounds

• Fixed incorrect "Speed updated" messages when changing non-speed settings during a build

• Build speed can now go slower than 1 block per tick

• Removed the Featured tab from the main overlay

• Improved the bottom-right Support / Discord / YouTube buttons with better styling

• Changed the regular library side panel from a preview/layer list to a materials list

• Updated library preview text to match click/select behavior

-Improved the export menu styling for Pos1 and Pos2

• Fixed export coordinate fields so manual values stay saved when reopening the menu

• Fixed export coordinate fields so typing coordinates updates the selection live

• Fixed Set Pos buttons so they work correctly even after manual coordinate edits