Alpha 2 - Sniffer Fix and UI Update 1

 * Tweaked the spacing of various container screens to look less garbage and to be more accurate to Java Edition.
 * Retextured player preview border to be consistent with the inventory slots and to be more accurate to Java Edition.
 * Retextured bottle slot to better reflect the bottles' new design.
 * Retextured enchantment lapis slot to better reflect how it appears in the Smithing Table.
 * Close and help panel is now at the top of the Cartography Table screen when not using touch controls.
 * Close button now properly disappears when using a controller in the Cartography Table screen.
 * Close button is now consistently part of a raised panel in container screens, even when there is no help button.
 * Bamboo Fences, Bamboo Fence Gates, Village Bells, and all Candles no longer have visible seams.
 * Beacon screen has been made less wide for parity with Java Edition.
 * Sniffer and its spawn egg are now visible.
 * Zombified piglins now use the correct model.
 * Changed min_engine_version to 1.20.
 * Changed format version to 2.
 * Updated grass sides fix to include the Cherry Grove.

Alpha 3 - Horse Bar Fix and UI Update 2

 Bug Fixes (things that were wrong specifically with this resource pack and no longer are)

 * Horse Jump Bar is now visible.
 * The Hotbar's Inventory Button is now correctly layered below the Selected Hotbar Slot when using touch controls. (Added JSON)
 * The space where the rightmost Hotbar Slot and the Inventory Button meet no longer has two pixels at a distractingly higher opacity when playing with a lowered HUD Opacity and touch controls. (Added / edited textures)

 General Changes (things that were wrong with vanilla but fixed with this resource pack)

 * Horse Jump Bar and Camel Dash Bar no longer get stretched when using touch controls. (Added JSON)
 * The background for the Horse Renderer on the Horse Screen is now black like on Java Edition. (Added JSON)
 * The Worlds Tab on the Select World Screen now connects properly with the Select World Panel. (Added JSON)
 * Fixed the top- and bottom-left corners on all white, rounded panel backgrounds (Inventory, etc.). (Added textures)
 * Fixed the top-left and -right corners on the Close and Help Panel. (Added texture)
 * Fixed various sizing and cutoff issues with container scroll panels (Recipe Book, Villager Trades, etc.). (Added JSON)
 * Fixed various texturing issues with container scroll panels. (Added JSON and textures)
 * The spacing between the layout buttons in the inventory is now consistent. (Added JSON)

 Technical Changes

 * Condensed HUD JSON. (made horse jump bar visible somehow?? if it works, it works, i guess.)
 * Renamed the UI texture selected_hotbar_slot2 to cb_selected_hotbar_slot_back.
 * Added capitalization to changelog.
 * Added the update subtitle to Open Alpha 2 in the changelog.
 * Renamed button_ref creative_no_coalesce_container_slot_button_cb to cb_recipe_book_highlight in Inventory Screen JSON.
 * Renamed cb_highlight_slot_panel to cb_recipe_highlight_slot_panel in Inventory JSON.
 * Started preperation on compatibility with Conglomeration. (WIP resource pack)
 * Removed 'Open' from 'Open Alpha 2' in the changelog.