- [FIX] Corregits un cabàs de warnings

main.cpp

@@ -17,7 +17,7 @@ void save_code();
 
 void loop() {
     if (btnp(KEY_TAB)) {
-        current_editor = (++current_editor)%2;
+        current_editor = (current_editor+1)%2;
         switch(current_editor) {
             case 0:
                 init_terminal();
@@ -137,8 +137,8 @@ void load_code() {
 }
 
 std::list<std::string>::iterator ls[28];
-static int col = 0;
-static int line = 0;
+static unsigned int col = 0;
+static unsigned int line = 0;
 
 void refresh_code_editor() {
     color(COLOR_WHITE, COLOR_BLUE);