feat(startscreen): add title and welcome message

src/startscreen.py

@@ -0,0 +1,21 @@
+import pygame
+from button import Button
+
+class Startscreen:
+    def __init__(self, screen):
+        self.screen = screen
+        self.font_title = pygame.font.SysFont("Arial", 36)
+        self.font_label = pygame.font.SysFont("Arial", 20)
+
+
+    def run(self):
+        # set background color
+        self.screen.fill((0, 0, 0))
+
+        # set title and intro/welcome message
+        title = self.font_title.render("SILENT FH", True, (0, 255, 0))
+        self.screen.blit(title, (10, 10))
+        message = self.font_label.render("Welcome to FH - Study with purpose", True, (0, 255, 255))
+
+
+        return None