[Keyboard] Add ERA65 (#19591)

Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/era/era65/config.h

@@ -0,0 +1,30 @@
+// Copyright 2023 eerraa (@era)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 6
+
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
+
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET // Activates the double-tap behavior
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 1000U // Timeout window in ms in which the double tap can occur.
+
+#define BACKLIGHT_PWM_DRIVER PWMD0
+#define BACKLIGHT_PWM_CHANNEL RP2040_PWM_CHANNEL_A