Add text editor, misc changes

src/text_editor/main.cpp

@@ -0,0 +1,17 @@
+#define BASIC_IMPL
+#include "../pdf_browser/basic.h"
+
+#include "raylib.h"
+
+int main() {
+    InitWindow(1280, 720, "Text editor");
+    SetWindowState(FLAG_WINDOW_RESIZABLE);
+    SetTargetFPS(60);
+
+    while (!WindowShouldClose()) {
+        BeginDrawing();
+        ClearBackground(RAYWHITE);
+        EndDrawing();
+    }
+    CloseWindow();
+}