feat(display): migrate to HD44780 character lcd

include/display.hpp

@@ -1,16 +1,16 @@
 #pragma once
 #include <Arduino.h>
-#include <U8g2lib.h>
+#include <LiquidCrystal_I2C.h>
 
 /*
- * A helper class to facilitate drawing on the SSD1306 OLED display using the U8g2 library.
+ * A helper class to facilitate drawing on a HD44780 LCD display.
  */
 class Display {
   public:
-    Display();
+    Display(uint8_t addr = 0x27, uint8_t cols = 16, uint8_t rows = 2);
 
-    bool begin();
+    void begin();
     void drawJoystick(double x, double y, bool pressed);
   private:
-    U8G2_SSD1306_128X64_NONAME_F_HW_I2C oled;
+    LiquidCrystal_I2C lcd;
 };