fix eslint errors

public/trivabble.js

@@ -103,7 +103,7 @@
             } else {
                 console.error("Unsupported type");
             }
-        } else if (defaultValue !== undefined) {
+        } else if (typeof defaultValue !== "undefined") {
             return defaultValue;
         }
 
@@ -160,7 +160,7 @@
         PlayerName: "string",
         SpellCheckerEnabledOnce: "boolean",
         TimerGameDate: "number",
-        TimerTurnDate: "number",
+        TimerTurnDate: "number"
     };
 
     const _ = (window.libD && libD.l10n) ? libD.l10n() : function (s) {
@@ -170,7 +170,10 @@
     const trivabble = window.trivabble = {l10n: _};
 
     function format(s, v1, v2, v3) {
-        return s.replace("{0}", v1).replace("{1}", v2).replace("{2}", v3);
+        return s
+            .replace("{0}", v1)
+            .replace("{1}", v2)
+            .replace("{2}", v3);
     }
 
     let board;
@@ -2281,7 +2284,7 @@
         setTimerState(getSetting("ENABLE_TIMER"));
     }
 
-    let timerTimeout = 0
+    let timerTimeout = 0;
 
     function updateTimer() {
         const currentTimer = timerDate();
@@ -2293,7 +2296,7 @@
         setSetting("ENABLE_TIMER", enabled);
         if (timerTimeout) {
             clearInterval(timerTimeout);
-            timerTimeout = 0
+            timerTimeout = 0;
         }
 
         if (enabled) {