Fixed XPT2046 syntax and using unPhone library to clean up support (#3631)

* Fixed XPT2046 syntax and using unPhone library to clean up main and TFTDisplay.

* strange extra edits removed wtf

variants/unphone/variant.h

@@ -1,3 +1,7 @@
+// meshtastic/firmware/variants/unphone/variant.h
+
+#pragma once
+
 #define SPI_SCK 39
 #define SPI_MOSI 40
 #define SPI_MISO 41
@@ -28,7 +32,7 @@
 #define TFT_WIDTH 320
 #define TFT_OFFSET_X 0
 #define TFT_OFFSET_Y 0
-#define TFT_OFFSET_ROTATION 6 // the unPhone's screen is wired unusually, 0 is typical value here
+#define TFT_OFFSET_ROTATION 6 // unPhone's screen wired unusually, 0 typical
 #define TFT_INVERT false
 #define SCREEN_ROTATE true
 #define SCREEN_TRANSITION_FRAMERATE 5
@@ -37,7 +41,10 @@
 #define USE_XPT2046 1
 #define TOUCH_CS 38
 
-#define HAS_GPS 0 // the unphone doesn't have a gps module
+#define HAS_GPS                                                                                                                  \
+    0 // the unphone doesn't have a gps module by default (though
+      // GPS featherwing -- https://www.adafruit.com/product/3133
+      // -- can be added)
 #undef GPS_RX_PIN
 #undef GPS_TX_PIN
 
@@ -49,6 +56,7 @@
 
 #define BUTTON_PIN 21      // Button 3 - square - top button in landscape mode
 #define BUTTON_NEED_PULLUP // we do need a helping hand up
+#define BUTTON_PIN_ALT 45  // Button 1 - triangle - bottom button in landscape mode
 
 #define I2C_SDA 3 // I2C pins for this board
 #define I2C_SCL 4
@@ -58,6 +66,6 @@
 // ratio of voltage divider = 3.20 (R1=100k, R2=220k)
 // #define ADC_MULTIPLIER 3.2
 
-// #define BATTERY_PIN 13 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
+// #define BATTERY_PIN 13 // battery V measurement pin; vbat divider is here
 // #define ADC_CHANNEL ADC2_GPIO13_CHANNEL
 // #define BAT_MEASURE_ADC_UNIT 2