* feat: new portal & network manager

* refactor: migrate from PubSubClient to ArduinoMqttClient
* refactor: migrate from EEManager to FileData
* chore: bump ESP Telnet to 2.2
* chore: bump TinyLogger to 1.1.0

lib/BufferedWebServer/BufferedWebServer.h

@@ -0,0 +1,82 @@
+class BufferedWebServer {
+public:
+  BufferedWebServer(WebServer* webServer, size_t bufferSize = 64) {
+    this->webServer = webServer;
+    this->bufferSize = bufferSize;
+    this->buffer = (uint8_t*)malloc(bufferSize * sizeof(*this->buffer));
+  }
+
+  ~BufferedWebServer() {
+    free(this->buffer);
+  }
+
+  void send(int code, const char* contentType, JsonDocument& content) {
+    #ifdef ARDUINO_ARCH_ESP8266
+    if (!this->webServer->chunkedResponseModeStart(code, contentType)) {
+      this->webServer->send(505, F("text/html"), F("HTTP1.1 required"));
+      return;
+    }
+    #else
+    this->webServer->send(code, contentType, "");
+    #endif
+
+    this->webServer->setContentLength(measureJson(content));
+    serializeJson(content, *this);
+    this->flush();
+
+    #ifdef ARDUINO_ARCH_ESP8266
+    this->webServer->chunkedResponseFinalize();
+    #else
+    this->webServer->sendContent("");
+    #endif
+  }
+
+  size_t write(uint8_t c) {
+    this->buffer[this->bufferPos++] = c;
+
+    if (this->bufferPos >= this->bufferSize) {
+      this->flush();
+    }
+
+    return 1;
+  }
+
+  size_t write(const uint8_t* buffer, size_t length) {
+    size_t written = 0;
+    while (written < length) {
+      size_t copySize = this->bufferSize - this->bufferPos;
+      if (written + copySize > length) {
+        copySize = length - written;
+      }
+
+      memcpy(this->buffer + this->bufferPos, buffer + written, copySize);
+      this->bufferPos += copySize;
+
+      if (this->bufferPos >= this->bufferSize) {
+        this->flush();
+      }
+
+      written += copySize;
+    }
+
+    return written;
+  }
+
+  void flush() {
+    if (this->bufferPos == 0) {
+      return;
+    }
+
+    this->webServer->sendContent((const char*)this->buffer, this->bufferPos);
+    this->bufferPos = 0;
+    #ifdef ARDUINO_ARCH_ESP8266
+    ::yield();
+    #endif
+  }
+
+protected:
+  WebServer* webServer = nullptr;
+  uint8_t* buffer;
+  size_t bufferSize = 64;
+  size_t bufferPos = 0;
+};