Fix Javadoc warnings due to Java 21 update (+ some other warnings)

The default implicit constructor must also have a doc comment, so I have to make it explicit and either properly restrict the visibility of the constructor, or actually document it.

pandalib-cli/src/main/java/fr/pandacube/lib/cli/commands/CLIBrigadierDispatcher.java

@@ -25,6 +25,9 @@ public class CLIBrigadierDispatcher extends BrigadierDispatcher<CLICommandSender
 	public static final CLICommandSender CLI_CONSOLE_COMMAND_SENDER = new CLIConsoleCommandSender();
 
 
+	private CLIBrigadierDispatcher() {}
+
+
 	/**
 	 * Executes the provided command as the console.
 	 * @param commandWithoutSlash the command, without the eventual slash at the beginning.

pandalib-cli/src/main/java/fr/pandacube/lib/cli/commands/CLIConsoleCommandSender.java

@@ -11,6 +11,12 @@ import org.jetbrains.annotations.NotNull;
  * The console command sender.
  */
 public class CLIConsoleCommandSender implements CLICommandSender {
+
+    /**
+     * Creates a new console command sender.
+     */
+    protected CLIConsoleCommandSender() {}
+
     public String getName() {
         return "Console";
     }

pandalib-cli/src/main/java/fr/pandacube/lib/cli/commands/CommandAdmin.java

@@ -36,6 +36,11 @@ import static fr.pandacube.lib.chat.ChatStatic.text;
  */
 public class CommandAdmin extends CLIBrigadierCommand {
 
+	/**
+	 * Initializes the admin command.
+	 */
+	public CommandAdmin() {}
+
 	@Override
 	protected LiteralArgumentBuilder<CLICommandSender> buildCommand() {
 		return literal("admin")

pandalib-cli/src/main/java/fr/pandacube/lib/cli/commands/CommandStop.java

@@ -9,6 +9,11 @@ import fr.pandacube.lib.cli.CLIApplication;
  */
 public class CommandStop extends CLIBrigadierCommand {
 
+	/**
+	 * Initializes the admin command.
+	 */
+	public CommandStop() {}
+
 	@Override
 	protected LiteralArgumentBuilder<CLICommandSender> buildCommand() {
 		return literal("stop")

pandalib-cli/src/main/java/fr/pandacube/lib/cli/log/CLILogger.java

@@ -97,5 +97,7 @@ public class CLILogger {
 		t.start();
 		return ps;
 	}
+
+	private CLILogger() {}
 	
 }