start work on welcome wizard

config/config.py

@@ -42,9 +42,9 @@ class Database:
 
     def __post_init__(self):
         if isinstance(self.path, str):
-            self.path = Path(self.path)
+            self.path = Path(self.path).expanduser()
         if isinstance(self.temp, str):
-            self.temp = Path(self.temp)
+            self.temp = Path(self.temp).expanduser()
 
 @dataclass
 class Mail:
@@ -137,7 +137,7 @@ class Config:
     """
 
     _config: Optional[DictConfig] = None
-
+    config_exists: bool = True
     def __init__(self, config_path: str):
         """
         Loads the configuration file and stores it for future access.
@@ -157,9 +157,14 @@ class Config:
                 base_config = base_file.read()
             with open(config_path, "w") as config_file:
                 config_file.write(base_config)
+            self.config_exists = False
         self._config = OmegaConf.load(config_path)
         self.config_path = config_path
 
+    @property
+    def exists(self) -> bool:
+        return self.config_exists
+
     def save(self):
         """
         Saves the current configuration to the file.
@@ -169,6 +174,12 @@ class Config:
         """
         OmegaConf.save(self._config, self.config_path)
 
+    def reload(self):
+        """
+        Reloads the configuration from the file.
+        """
+        self._config = OmegaConf.load(self.config_path)
+
     @property
     def zotero(self):
         return Zotero(**self._config.zotero)