Add Override annotations where appropriate

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/conversations/InactivityConversationCanceller.java

@@ -24,11 +24,13 @@ public class InactivityConversationCanceller implements ConversationCanceller {
         this.timeoutSeconds = timeoutSeconds;
     }
 
+    @Override
     public void setConversation(@NotNull Conversation conversation) {
         this.conversation = conversation;
         startTimer();
     }
 
+    @Override
     public boolean cancelBasedOnInput(@NotNull ConversationContext context, @NotNull String input) {
         // Reset the inactivity timer
         stopTimer();
@@ -36,6 +38,7 @@ public class InactivityConversationCanceller implements ConversationCanceller {
         return false;
     }
 
+    @Override
     @NotNull
     public ConversationCanceller clone() {
         return new InactivityConversationCanceller(plugin, timeoutSeconds);
@@ -46,6 +49,7 @@ public class InactivityConversationCanceller implements ConversationCanceller {
      */
     private void startTimer() {
         taskId = plugin.getServer().getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
+            @Override
             public void run() {
                 if (conversation.getState() == Conversation.ConversationState.UNSTARTED) {
                     startTimer();