Change Chat.modlog and Chat.splitTarget to better work with typescript

chat-plugins/hangman.js

@@ -250,7 +250,7 @@ const commands = {
 			room.game = game;
 			game.display(user, true);
 
-			this.modlog('HANGMAN', null);
+			this.modlog('HANGMAN');
 			return this.privateModAction(`(A game of hangman was started by ${user.name}.)`);
 		},
 		createhelp: ["/hangman create [word], [hint] - Makes a new hangman game. Requires: % @ * # & ~"],
@@ -276,7 +276,7 @@ const commands = {
 
 			const game = /** @type {Hangman} */ (room.game);
 			game.end();
-			this.modlog('ENDHANGMAN', null);
+			this.modlog('ENDHANGMAN');
 			return this.privateModAction(`(The game of hangman was ended by ${user.name}.)`);
 		},
 		endhelp: ["/hangman end - Ends the game of hangman before the man is hanged or word is guessed. Requires: % @ * # & ~"],

chat-plugins/poll.js

@@ -279,7 +279,7 @@ const commands = {
 			room.poll.display();
 
 			this.roomlog(`${user.name} used ${message}`);
-			this.modlog('POLL', null);
+			this.modlog('POLL');
 			return this.privateModAction(`(A poll was started by ${user.name}.)`);
 		},
 		newhelp: [`/poll create [question], [option1], [option2], [...] - Creates a poll. Requires: % @ * # & ~`],
@@ -356,7 +356,7 @@ const commands = {
 
 			room.poll.end();
 			delete room.poll;
-			this.modlog('POLL END', null);
+			this.modlog('POLL END');
 			return this.privateModAction(`(The poll was ended by ${user.name}.)`);
 		},
 		endhelp: [`/poll end - Ends a poll and displays the results. Requires: % @ * # & ~`],

chat-plugins/thing-of-the-day.js

@@ -435,7 +435,7 @@ let commands = {
 		if (room !== handler.room) return this.errorReply(`This command can only be used in ${handler.room.title}.`);
 		if (!this.can('mute', null, room)) return false;
 
-		target = this.splitTarget(target, false);
+		target = this.splitTarget(target);
 		let name = this.targetUsername;
 		let userid = toId(name);
 		if (!userid) return this.errorReply(`'${name}' is not a valid username.`);

chat.js

@@ -638,11 +638,11 @@ class CommandContext {
 	}
 	/**
 	 * @param {string} action
-	 * @param {string | User?} user
-	 * @param {string?} note
+	 * @param {string | User?} [user]
+	 * @param {string?} [note]
 	 * @param {object} options
 	 */
-	modlog(action, user, note = null, options = {}) {
+	modlog(action, user = null, note = null, options = {}) {
 		let buf = `(${this.room.id}) ${action}: `;
 		if (user) {
 			if (typeof user === 'string') {
@@ -1089,9 +1089,9 @@ class CommandContext {
 	 *   message has no comma)
 	 *
 	 * @param {string} target
-	 * @param {boolean} exactName
+	 * @param {boolean} [exactName]
 	 */
-	splitTarget(target, exactName) {
+	splitTarget(target, exactName = false) {
 		let [name, rest] = this.splitOne(target);
 
 		this.targetUser = Users.get(name, exactName);