Update dependencies and pin to working version

.gitignore

@@ -1,6 +1,7 @@
 clients/web/node_modules/
 clients/web/\.vscode/
 
+.pio
 .pioenvs
 .piolibdeps
 lib/readme.txt

platformio.ini

@@ -37,14 +37,14 @@ board_build.flash_mode = dout
 upload_speed = 115200
 upload_resetmethod = nodemcu
 lib_deps =
-  WiFiManager@0.14
-  AsyncMqttClient
-  ArduinoJson
-  WS2812FX
-  NeoPixelBus
-  WebSockets
-  ESPAsyncE131
-  ESPAsyncUDP
+  https://github.com/tzapu/WiFiManager.git#440f312
+  AsyncMqttClient@0.8.2
+  ArduinoJson@6.14.0
+  WS2812FX@1.2.2
+  NeoPixelBus@2.5.6
+  WebSockets@2.2.0
+  ESPAsyncE131@1.0.1
+  https://github.com/me-no-dev/ESPAsyncUDP#697c75a
   ;PubSubClient ;neede for #define ENABLE_MQTT
   ;FastLED      ;needed for #define CUSTOM_WS2812FX_ANIMATIONS
 targets_eum = erase, upload, monitor