Remove internal annotations

Since we now expose an api, everything inside the implementation is considered internal.

Author: FlorianMichael

src/main/java/com/viaversion/viafabricplus/base/save/SaveManager.java

@@ -61,7 +61,6 @@ public SaveManager(final SettingsManager settingsManager) {
         }));
     }
 
-    @ApiStatus.Internal
     public void postInit() {
         for (AbstractSave save : saves) {
             save.postInit();

src/main/java/com/viaversion/viafabricplus/features/classic_world_height/WorldHeightSupport.java

@@ -40,7 +40,6 @@
 import java.util.BitSet;
 import java.util.List;
 
-@ApiStatus.Internal
 public class WorldHeightSupport {
 
     public static PacketHandler handleJoinGame(final PacketHandler parentHandler) {

src/main/java/com/viaversion/viafabricplus/features/cpe_extensions/CPEAdditions.java

@@ -45,18 +45,15 @@ public class CPEAdditions {
 
     private static boolean snowing = false;
 
-    @ApiStatus.Internal
     public static void modifyMappings() {
         allowExtension(ClassicProtocolExtension.ENV_WEATHER_TYPE);
         EXT_WEATHER_TYPE = createNewPacket(ClassicProtocolExtension.ENV_WEATHER_TYPE, 31, (user, buf) -> buf.readByte());
     }
 
-    @ApiStatus.Internal
     public static boolean isSnowing() {
         return ProtocolTranslator.getTargetVersion().equals(LegacyProtocolVersion.c0_30cpe) && snowing;
     }
 
-    @ApiStatus.Internal
     public static void setSnowing(boolean snowing) {
         CPEAdditions.snowing = snowing;
     }

src/main/java/com/viaversion/viafabricplus/features/footstep_particle/FootStepParticle1_12_2.java

@@ -37,7 +37,6 @@
 import net.minecraft.util.math.Vec3d;
 import org.jetbrains.annotations.ApiStatus;
 
-@ApiStatus.Internal
 public class FootStepParticle1_12_2 extends SpriteBillboardParticle {
 
     public static final Identifier ID = Identifier.of("viafabricplus", "footstep");

src/main/java/com/viaversion/viafabricplus/features/networking/resource_pack_header/ResourcePackHeaderDiff.java

@@ -87,7 +87,6 @@ public class ResourcePackHeaderDiff {
         registerVersion(ProtocolVersion.v1_7_2, 1, "1.7.5");
     }
 
-    @ApiStatus.Internal
     public static void checkOutdated() {
         if (!GAME_VERSION_DIFF.containsKey(ProtocolTranslator.NATIVE_VERSION)) {
             throw new RuntimeException("The native client version is not registered in the resource pack header diff!");

src/main/java/com/viaversion/viafabricplus/features/recipe_emulation/Recipes1_11_2.java

@@ -732,7 +732,6 @@ public static List<RecipeInfo> getRecipes(final ProtocolVersion targetVersion) {
      * @param screenHandler The screen handler
      * @param inventory     The inventory of the screen handler
      */
-    @ApiStatus.Internal
     public static void setCraftingResultSlot(final int syncId, final ScreenHandler screenHandler, final RecipeInputInventory inventory) {
         final ClientPlayNetworkHandler network = MinecraftClient.getInstance().getNetworkHandler();
         final ClientWorld world = MinecraftClient.getInstance().world;

src/main/java/com/viaversion/viafabricplus/features/text_rendering/non_existing_characters/UnicodeFontFix1_12_2.java

@@ -36,7 +36,6 @@
  * Older versions only had unicode font support for some languages and therefore servers are expecting the client
  * to use a unicode font, not using it on older versions can cause issues with wrong dimensions in chat components.
  */
-@ApiStatus.Internal
 public class UnicodeFontFix1_12_2 {
 
     private static boolean enabled = false;

src/main/java/com/viaversion/viafabricplus/features/ui/armor_hud/ArmorHudEmulation1_8.java

@@ -38,7 +38,6 @@
 
 import java.util.UUID;
 
-@ApiStatus.Internal
 public class ArmorHudEmulation1_8 {
 
     private static final UUID ARMOR_POINTS_UUID = UUID.fromString("2AD3F246-FEE1-4E67-B886-69FD380BB150");

src/main/java/com/viaversion/viafabricplus/features/world/item_picking/ItemPick1_21_3.java

@@ -42,9 +42,7 @@
 import net.minecraft.util.hit.EntityHitResult;
 import net.minecraft.util.hit.HitResult;
 import net.minecraft.util.math.BlockPos;
-import org.jetbrains.annotations.ApiStatus;
 
-@ApiStatus.Internal
 public class ItemPick1_21_3 {
 
     private static void addPickBlock(final PlayerInventory inventory, final ItemStack stack) {

src/main/java/com/viaversion/viafabricplus/old/versioned/EnchantmentAttributesEmulation1_20_6.java

@@ -39,7 +39,6 @@
 
 import java.util.Optional;
 
-@ApiStatus.Internal
 public class EnchantmentAttributesEmulation1_20_6 {
 
     static {