chore(web-console): Improvements for Tables section

[insmac]

This PR changes Tables listing UI in a few ways:

• Ditch the Settings icon (and button) with menu, introduce two new actions instead:
  a) Select button to go into table selection mode
  b) Toggle between auto refresh (detault) and manual table refresh mode. This is useful for debugging or local development - when auto refresh is disabled, only a browser tab refresh will update table listing and autocomplete provider.
• Introduce table selection mode. When Select button in the top right is clicked, each table can be selected separately to perform actions on them. For now the only available one is "copy schema to clipboard". There is also "select all" button in the bottom left.
• Move all table-related errors (show column from table, copy schema to clipboard) to the Notification log. This is especially critical if table auto refresh is disabled, as some tables might not exist already.
• Handle errors in Copy schema to clipboard without breaking the application.

Screen recording:

Screen.Recording.2024-10-21.at.13.52.44.mov