Apply a bunch of changes (read description of commit)

- Replace essentials mute check with BanManager mute check
- Compact listeners
- Add @NotNull to String[] args in commands
- Add a /sky message
- Add a /skyrtp command
- Fix admins breaking floor in box
- Improve furnace place message
- Compact listener code
- Disable withers & delete wither skull land listener
- Fix players going above 319 Y level in sky
- Optimize listener registration
- Add %galaxyboxpvp_hearts% placceholder

pom.xml

@@ -36,14 +36,14 @@
             <id>placeholderapi-repo</id>
             <url>https://repo.extendedclip.com/content/repositories/placeholderapi/</url>
         </repository>
-        <repository>
-            <id>essentials-releases</id>
-            <url>https://repo.essentialsx.net/releases/</url>
-        </repository>
         <repository>
             <id>jitpack.io</id>
             <url>https://jitpack.io</url>
         </repository>
+        <repository>
+            <id>confuser-repo</id>
+            <url>https://ci.frostcast.net/plugin/repository/everything</url>
+        </repository>
     </repositories>
     <dependencies>
         <dependency>
@@ -58,18 +58,18 @@
             <version>2.11.6</version>
             <scope>provided</scope>
         </dependency>
-        <dependency>
-            <groupId>net.essentialsx</groupId>
-            <artifactId>EssentialsX</artifactId>
-            <version>2.21.0</version>
-            <scope>provided</scope>
-        </dependency>
         <dependency>
             <groupId>com.github.booksaw</groupId>
             <artifactId>BetterTeams</artifactId>
             <version>4.11.0</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>me.confuser.banmanager</groupId>
+            <artifactId>BanManagerCommon</artifactId>
+            <version>7.9.0</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
     <properties>
         <java.version>21</java.version>