Enhancement/make selector sticky (#84)

* feat: Make the space selector box stick to the top of the page.

* chore: Cleanup files.

* chore: Add custom styling for personal ask.

* chore: Remove unused imports.

* Refactor: azureblob datasource (#79)

refactor:  Azure Blob data source - Switch data loader to our custom implementation based on OpenDAL

* docs: update AzureBlobs to match refactor
* Update `aiohttp` from 3.8.4 -> 3.8.5
* Change document file list to read from local json file (same as web scraper) rather than direct from Azure. Similar to web scraper
* refactor: move document list management methods to `SpaceDataSourceFileBased`
* add OpendalReader code + lic + copyright

* refactor: DocumentListItem
  * change from `tuple` to a `dataclass`
  * move to domain.py
* chore: remove commented code
* test:
  * unit test DocumentListItem.create_instance
  * unit test consistency between document list save and load (serialise and de-serialise).
  * move test PDF doc folder
* Various minor fixes:
   * Always have some text for `page_title` metadata to render a link. Improve default behaviour to use <title> text if no H1. "web page" if no title text.
  * pass args to DocumentListItem() in the correct order
  * handle unknown source type in metadata. This should only happen if a breaking change to the type schema is made and data isn't migrated i.e. re-index.
  * style: fix style and lint errors

BREAKING CHANGE: Azure Blob data source config scheme for credentials changes. SAS tokens are no longer supported only Account Key. Any Azure Blob data sources configured with a SAS token will stop working.

* chore: Add avatar to chat messages

* chore: Added script to format avartars.

* feat: Make the space selector box stick to the top of the page.

* chore: Remove unused imports.

* Update user avatar settings.

* chore: Attach event listeners to space selector.

* chore: Cleanup imports.

* chore: Update chat_ui script.

* feat: Make the space selector box stick to the top of the page.

* chore: Cleanup files.

* chore: Use username as email for gravatar requests.

* chore: Use identicon as avatar default

* chore: Set username in auth session state.

* chore: Cleanup imports.

* chore: Bump llama-index to 0.8.5.post2

* Update get username function

---------

Co-authored-by: Janaka Abeywardhana <contact@janaka.co.uk>

web/utils/layout.py

@@ -354,7 +354,7 @@ def _chat_message(message_: str, is_user: bool) -> None:
 def _personal_ask_style() -> None:
     """Custom style for personal ask."""
     st.write(
-        """
+    """
     <style>
         [data-testid="stExpander"] {
             z-index: 1000;