Add: Remember the last used theme (#821)

- Add: Password in deploy config
- Opt: Parse yaml value null into None

deploy/utils.py

@@ -49,6 +49,8 @@ def poor_yaml_read(file):
             if result:
                 k, v = result.group(1), result.group(2).strip('\n\r\t\' ')
                 if v:
+                    if v == 'null':
+                        v = None
                     data[k] = v
 
     return data
@@ -65,6 +67,8 @@ def poor_yaml_write(data, file, template_file=DEPLOY_TEMPLATE):
         text = f.read().replace('\\', '/')
 
     for key, value in data.items():
+        if value is None:
+            value = 'null'
         text = re.sub(f'{key}:.*?\n', f'{key}: {value}\n', text)
 
     with open(file, 'w', encoding='utf-8') as f: