fix: Fix plugin discovery in bundle to register them in napari viewer (…

…#1175)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit


- **New Features**
- Enhanced the plugin registration process to dynamically discover and
register plugins from specified directories.
	- Improved extensibility and maintainability of the plugin system.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

package/PartSeg/plugins/__init__.py

@@ -1,9 +1,11 @@
 import contextlib
 import importlib
+import logging
 import os
 import pkgutil
 import sys
 import typing
+from pathlib import Path
 
 import PartSegCore.plugins
 
@@ -17,6 +19,12 @@ def register_napari_plugins():  # pragma: no cover
         npe2.PluginManager.instance().register(
             os.path.join(os.path.dirname(os.path.dirname(PartSeg.__file__)), "napari.yaml")
         )
+        base_path = Path(__file__).parent.parent.parent / "plugins"
+        for el in base_path.glob("*/napari.yaml"):
+            try:
+                npe2.PluginManager.instance().register(str(el))
+            except Exception:  # noqa: PERF203
+                logging.exception("Failed to register %s", el)
 
 
 def get_plugins():