Remove "lovelace" string from all the events

[elchininet]

• Breaking change: Removed "lovelace" string from all the events because these events can be triggered on any dashboard if the listen method is called. The new even names are:
  • ON_PANEL_LOAD (onPanelLoad)
  • ON_MORE_INFO_DIALOG_OPEN (onMoreInfoDialogOpen)
  • ON_HISTORY_AND_LOGBOOK_DIALOG_OPEN (onHistoryAndLogBookDialogOpen)
  • ON_SETTINGS_DIALOG_OPEN (onSettingsDialogOpen)
• Fix a bug: if one of the elements in a tree is null, return null instead of trying to perform a query on a null element which will throw an error

Note:

1. In this pull request, the Home Assistant docker image has been updated to 2023.12.4.
2. The Cypress version has been rolled back because the version 13.6.2 fails the tests almost all the time

[coveralls]

coverage: 100.0%. remained the same
when pulling bbcb6b4 on remove_lovelace_from_events
into 86d5b17 on master.