Add icon to executable

Author: Veras-D

.github/workflows/main.yml

@@ -36,6 +36,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r requirements.txt
           pip install pyinstaller
+          pip install pillow  
 
       - name: Build with pyinstaller for ${{ matrix.config.os }}
         run: pyinstaller scripts/main.py --onefile --noconsole --icon=img/icon.ico