Fix Spigot annotation mistakes

while some of these may of been true, they are extreme cases and cause
a ton of noise to plugin developers.

Use ApiStatus.Internal instead of Deprecated for actual internal API
that continues to have use (internally).

These do not help plugin developers if they bring moise noise than value.

paper-api/src/main/java/org/bukkit/NamespacedKey.java

@@ -74,12 +74,14 @@ public final class NamespacedKey implements net.kyori.adventure.key.Key { // Pap
 
     /**
      * Create a key in a specific namespace.
+     * <p>
+     * For most plugin related code, you should prefer using the
+     * {@link NamespacedKey#NamespacedKey(Plugin, String)} constructor.
      *
      * @param namespace namespace
      * @param key key
-     * @apiNote should never be used by plugins, for internal use only!!
+     * @see #NamespacedKey(Plugin, String)
      */
-    @ApiStatus.Internal
     public NamespacedKey(@NotNull String namespace, @NotNull String key) {
         Preconditions.checkArgument(namespace != null && isValidNamespace(namespace), "Invalid namespace. Must be [a-z0-9._-]: %s", namespace);
         Preconditions.checkArgument(key != null && isValidKey(key), "Invalid key. Must be [a-z0-9/._-]: %s", key);