feat: add equality operators, make history screen paginated, random performance updates

lib/utils/app_updater.dart

@@ -2,6 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:kooltab2/utils/app_update_util.dart';
 import 'package:ota_update/ota_update.dart';
 
+import 'app_config.dart';
+
 class UpdateChecker {
   static bool _hasChecked = false;
 
@@ -13,7 +15,7 @@ class UpdateChecker {
 
     _hasChecked = true;
 
-    final updater = AppUpdateUtil(serverUrl: "https://updater.brammie15.dev");
+    final updater = AppUpdateUtil(serverUrl: kUpdateServerUrl);
 
     try {
       final update = await updater.checkForUpdate();
@@ -72,7 +74,7 @@ Future<void> _downloadAndInstall(UpdateInfo update) async {
   try {
     final url = update.download.startsWith("http")
         ? update.download
-        : "https://updater.brammie15.dev${update.download}";
+        : "$kUpdateServerUrl${update.download}";
     OtaUpdate()
         .execute(
           url,