feat(startscreen): implement button draw method

src/button.py

@@ -22,6 +22,29 @@ class Button:
     def draw(self, screen):
         action = False
 
-        # todo
+        # get current mous position
+        mouse_pos = pygame.mouse.get_pos()
+
+        # check if mouse is over button
+        if self.rect.collidepoint(mouse_pos):
+            current_color = self.hover
+
+            # check if left mouse button is pressed
+            if pygame.mouse.get_pressed()[0] == 0 and self.clicked:
+                self.clicked = False
+                action = True
+        else:
+            current_color = self.color
+            self.clicked = False
+
+        # draw buttton
+        pygame.draw.rect(screen, current_color, self.rect, border_radius = 12)
+
+        # render button text
+        text_surface = self.font.render(self.text, True, (255, 255, 255))
+
+        # place text in the middle of the button
+        text_rect = text_surface.get_rect(center=self.rect.center)
+        screen.blit(text_surface, text_rect)
 
         return action