feat: change name of images recorded by the Camera Block

The index of the recorded images is now padded with zeros to be at least 6 figures long.
Improves the sorting in file explorers, and compatibility with image-processing software.
Unlikely to be a breaking change.

src/crappy/blocks/camera_processes/record.py

@@ -208,11 +208,11 @@ def loop(self) -> None:
 
     # Only include the extension for the image file if applicable
     if self._img_extension:
-      path = str(self._save_folder / f"{self.metadata['ImageUniqueID']}_"
+      path = str(self._save_folder / f"{self.metadata['ImageUniqueID']:06d}_"
                                      f"{self.metadata['t(s)']:.3f}."
                                      f"{self._img_extension}")
     else:
-      path = str(self._save_folder / f"{self.metadata['ImageUniqueID']}_"
+      path = str(self._save_folder / f"{self.metadata['ImageUniqueID']:06d}_"
                                      f"{self.metadata['t(s)']:.3f}")
 
     # Saving the image at the destination path using the chosen backend