community[minor]: [PebbloSafeLoader] Rename loader type and add SharePointLoader to supported loaders (#24393)

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- [x] **PR title**: [PebbloSafeLoader] Rename loader type and add
SharePointLoader to supported loaders
    - **Description:** Minor fixes in the PebbloSafeLoader:
        - Renamed the loader type from `remote_db` to `cloud_folder`.
- Added `SharePointLoader` to the list of loaders supported by
PebbloSafeLoader.
    - **Issue:** NA
    - **Dependencies:** NA
- [x] **Add tests and docs**: NA

libs/community/langchain_community/utilities/pebblo.py

@@ -45,16 +45,17 @@ dir_loader = [
 ]
 
 in_memory = ["DataFrameLoader"]
-remote_db = [
+cloud_folder = [
     "NotionDBLoader",
     "GoogleDriveLoader",
+    "SharePointLoader",
 ]
 
 LOADER_TYPE_MAPPING = {
     "file": file_loader,
     "dir": dir_loader,
     "in-memory": in_memory,
-    "remote_db": remote_db,
+    "cloud-folder": cloud_folder,
 }
 
 SUPPORTED_LOADERS = (*file_loader, *dir_loader, *in_memory)