Docstrings

https://www.notion.so/qim-dtu/v1-0-prep-Documentation-update-15abab83b2f980398702f98202ec99d4

Mostly changes in docstrings - some fixes here and there to make the layout and functionality work

qim3d/io/_loading.py

@@ -570,6 +570,10 @@ class DataLoader:
 
         Args:
             path (str): Directory path
+        
+        returns:
+            numpy.ndarray, numpy.memmap or tuple: The loaded volume.
+                If 'self.return_metadata' is True, returns a tuple (volume, metadata).
         """
         import pydicom
 
@@ -795,8 +799,13 @@ def load(
         force_load (bool, optional): If the file size exceeds available memory, a MemoryError is raised.
             If force_load is True, the error is changed to warning and the loader tries to load it anyway. Default is False.
         dim_order (tuple, optional): The order of the dimensions in the volume for .vol files. Default is (2,1,0) which corresponds to (z,y,x)
-        **kwargs: Additional keyword arguments to be passed
-        to the DataLoader constructor.
+        **kwargs (Any): Additional keyword arguments supported by `DataLoader`:
+            - `virtual_stack` (bool)
+            - `dataset_name` (str)
+            - `return_metadata` (bool)
+            - `contains` (str)
+            - `force_load` (bool)
+            - `dim_order` (tuple)
 
     Returns:
         vol (numpy.ndarray, numpy.memmap, h5py._hl.dataset.Dataset, nibabel.arrayproxy.ArrayProxy or tuple): The loaded volume
@@ -861,10 +870,10 @@ def load_mesh(filename: str) -> trimesh.Trimesh:
     Load a mesh from an .obj file using trimesh.
 
     Args:
-        filename: The path to the .obj file.
+        filename (str or os.PathLike): The path to the .obj file.
 
     Returns:
-        mesh: A trimesh object containing the mesh data (vertices and faces).
+        mesh (trimesh.Trimesh): A trimesh object containing the mesh data (vertices and faces).
 
     Example:
         ```python