feat: add internal API status annotation and improve sidebar test coverage

Author: TropicalShadow

src/main/java/net/bridgesplash/sidebar/sidebar/CustomSidebar.java

@@ -20,7 +20,6 @@
 import net.kyori.adventure.text.minimessage.tag.Tag;
 import net.kyori.adventure.text.minimessage.tag.resolver.TagResolver;
 import net.minestom.server.scoreboard.Sidebar;
-import org.intellij.lang.annotations.Subst;
 
 
 /**

src/main/java/net/bridgesplash/sidebar/sidebar/SidebarManager.java

@@ -2,6 +2,7 @@
 
 import java.util.WeakHashMap;
 import net.minestom.server.entity.Player;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.Nullable;
 
 /**
@@ -14,6 +15,7 @@ public final class SidebarManager {
     /**
      * Constructs a new SidebarManager.
      */
+    @ApiStatus.Internal
     public SidebarManager() {
     }
 

src/test/java/net/bridgesplash/sidebar/SidebarTest.java

@@ -1,6 +1,7 @@
 package net.bridgesplash.sidebar;
 
 import net.bridgesplash.sidebar.sidebar.CustomSidebar;
+import net.bridgesplash.sidebar.sidebar.SidebarManager;
 import net.bridgesplash.sidebar.state.State;
 import net.kyori.adventure.text.Component;
 import org.junit.jupiter.api.Test;
@@ -21,4 +22,10 @@ public void testSidebarConstructionWithComponent() {
         assertNotNull(sidebar);
     }
 
+    @Test
+    public void testSidebarAPI(){
+        SidebarManager manager = SidebarAPI.getSidebarManager();
+
+    }
+
 }