Overhaul annotation usage in the map builder (#40)

* Improve documentation

* Remove experimental annotation and change used annotation in the spawn method

---------

Co-authored-by: theEvilReaper <theEvilReaper@users.noreply.github.com>

Author: theEvilReaper

src/main/java/net/theevilreaper/aves/map/BaseMap.java

@@ -33,7 +33,7 @@ public BaseMap() {
 
     /**
      * Creates a new reference from the {@link BaseMap}.
-     * It requires all values which are needed to create a map.
+     * It requires all values that are needed to create a map.
      *
      * @param name     the name from the map
      * @param builders the builders from the map
@@ -83,7 +83,7 @@ public boolean equals(Object o) {
     }
 
     /**
-     * Returns a hash value from some data which are provided by the object.
+     * Returns a hash value from some data that are provided by the object.
      * In general, the hash relies on the unique data.
      * For the basic implementation that is only the name of the map.
      *

src/main/java/net/theevilreaper/aves/map/BaseMapBuilder.java

@@ -1,7 +1,6 @@
 package net.theevilreaper.aves.map;
 
 import net.minestom.server.coordinate.Pos;
-import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -17,7 +16,6 @@
  * @version 1.0.0
  * @since 1.9.0
  */
-@ApiStatus.Experimental
 public class BaseMapBuilder {
 
     protected final List<String> builders;
@@ -89,7 +87,7 @@ protected BaseMapBuilder(@NotNull BaseMap baseMap) {
      * @param spawn the position where the map will spawn
      * @return the current instance of {@link BaseMapBuilder} for method chaining
      */
-    public @NotNull BaseMapBuilder spawn(@NotNull Pos spawn) {
+    public @NotNull BaseMapBuilder spawn(@Nullable Pos spawn) {
         this.spawn = spawn;
         return this;
     }