Don't crash when update fails

DiscordChatExporter.Core/Services/UpdateService.cs

@@ -26,6 +26,8 @@ namespace DiscordChatExporter.Core.Services
             return null;
 #endif
 
+            try
+            {
                 // Remove some junk left over from last update
                 _updateManager.Cleanup();
 
@@ -35,15 +37,28 @@ namespace DiscordChatExporter.Core.Services
                 // Return latest version or null if running latest version already
                 return check.CanUpdate ? _lastVersion = check.LastVersion : null;
             }
+            catch
+            {
+                // It's okay for update to fail
+                return null;
+            }
+        }
 
         public async Task PrepareUpdateAsync()
         {
             if (_lastVersion == null)
                 return;
 
+            try
+            {
                 // Download and prepare update
                 await _updateManager.PreparePackageAsync(_lastVersion);
             }
+            catch
+            {
+                // It's okay for update to fail
+            }
+        }
 
         public async Task ApplyUpdateAsync(bool restart = true)
         {
@@ -52,10 +67,16 @@ namespace DiscordChatExporter.Core.Services
             if (_applied)
                 return;
 
+            try
+            {
                 // Enqueue an update
                 await _updateManager.EnqueueApplyPackageAsync(_lastVersion, restart);
-
                 _applied = true;
             }
+            catch
+            {
+                // It's okay for update to fail
+            }
+        }
     }
 }