fix(matter): typo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: SuGlider

docs/en/matter/matter.rst

@@ -107,7 +107,7 @@ The ``Matter`` class provides the following key methods:
 
 * ``begin()``: Initializes the Matter stack
 * ``isDeviceCommissioned()``: Checks if the device is commissioned
-* ``isWi-FiConnected()``: Checks Wi-Fi connection status (if Wi-Fi is enabled)
+* ``isWiFiConnected()``: Checks Wi-Fi connection status (if Wi-Fi is enabled)
 * ``isThreadConnected()``: Checks Thread connection status (if Thread is enabled)
 * ``isDeviceConnected()``: Checks overall device connectivity
 * ``isWiFiStationEnabled()``: Checks if WiFi Station mode is supported and enabled