Fix Member#getEffectiveName() in closing an appeal.
[11:09:22] [ERROR] [RestAction] Encountered error while processing success consumer
java.lang.NullPointerException: Cannot invoke "net.dv8tion.jda.api.entities.Member.getEffectiveName()" because the return value of "net.dv8tion.jda.api.entities.Message.getMember()" is null
at com.pinewoodbuilders.commands.appeals.AppealCommand.lambda$deleteAppeal$1(AppealCommand.java:128)
at net.dv8tion.jda.internal.requests.restaction.pagination.PaginationActionImpl$ChainedConsumer.accept(PaginationActionImpl.java:466)
at net.dv8tion.jda.internal.requests.restaction.pagination.PaginationActionImpl$ChainedConsumer.accept(PaginationActionImpl.java:432)
at net.dv8tion.jda.api.requests.Request.lambda$onSuccess$0(Request.java:95)
at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1395)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)