Fix: dev_tools import error

- Use `python -m dev_tools.button_extract` to run

dev_tools/button_extract.py

@@ -3,8 +3,6 @@ import os
 import numpy as np
 from PIL import Image
 
-os.chdir('../')
-
 from module.base.button import get_color
 from module.config.config import AzurLaneConfig
 from module.logger import logger
@@ -179,5 +177,5 @@ class AssetExtractor:
                 me = ModuleExtractor(name=module, config=config)
                 me.write()
 
-
-ae = AssetExtractor(AzurLaneConfig())
+if __name__ == '__main__':
+    ae = AssetExtractor(AzurLaneConfig('template'))

dev_tools/emulator_test.py

@@ -1,6 +1,9 @@
 import time
 
 import numpy as np
+import module.config.server as server
+
+server.server = 'cn'  # Don't need to edit, it's used to avoid error.
 
 from module.config.config import AzurLaneConfig
 from module.device.device import Device
@@ -33,5 +36,5 @@ class Config:
     USE_ADB_SCREENSHOT = False
 
 
-az = EmulatorChecker(AzurLaneConfig().merge(Config()))
+az = EmulatorChecker(AzurLaneConfig('template').merge(Config()))
 az.stress_test()