Screen resolution bug when running the game

Hello @JonathanMurray. Hello everyone.
Here I bring a temporary solution when running the game and shows screen resolution bug when running the game.

**To reproduce this problem:**
Just start the game and some incompatibility with the screen resolution identification will appear. Causes a resolution bug, the game is immediately stopped.

**Causes investigated:**
Relatively associated this error with incompatibility of the video driver with openGL applications. I still don't know which video cards can be affected, here I am using the VGA compatible controller for Intel Skylake GT2 [HD Graphics 520].

**Temporary solution:**
Disable the fullscreen at line 47 of the main.py file in the "/python-2d-game-3/pythongame" installation directory of the game.
Change `self.fullscreen = True` to `self.fullscreen = False`

So that it is:
```python
class Main:
def __init__(self, map_file_name: Optional[str], chosen_hero_id: Optional[str], hero_start_level: Optional[int],
start_money: Optional[int]):

cmd_flags = CommandlineFlags(map_file_name, chosen_hero_id, hero_start_level, start_money)

pygame.init()

print("Available display modes: " + str(pygame.display.list_modes()))

self.fullscreen = False
self.pygame_screen = self.setup_screen()
```

**Error message:**
```
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 153 (XFree86-VidModeExtension)
Minor opcode of failed request: 10 (XF86VidModeSwitchToMode)
Value in failed request: 0x220000e
Serial number of failed request: 265
Current serial number in output stream: 268
```
**Video card system registration and installed driver:**
```
*-display
description: VGA compatible controller
product: Skylake GT2 [HD Graphics 520]
manufacturer: Intel Corporation
ID: 2
bus information: pci@0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:156 memória:a0000000-a0ffffff memória:90000000-9fffffff porta de E/S:4000(tamanho=64) memória:c0000-dffff
```