New major release V2

Many thanks to @kingy444 who realized all of these major improvements
Merged from #61

• Rename across the board to Electrolux Status for consistency and clear identification
• Complete code refactor to conform to a core integration including applying pylint, ruff and typehinting throughout
• Reduce code footprint overall, splitting into smaller modules and reusing code snippets
• Use HomeAssistant aiohttp session rather than spinning up our own
• Implement Store for token within the session, allowing infinite restarts and refresh of token rather than re-authentication every 12 hours
• Improve logging for consistency
• Nested elements no longer use root and element seperately, now using root/element as key to remove clashes in device types
• Fix recursive lookup for nested elements (Fridge / Freezer)
• Implement dataclass model for ElectroluxDevice to improve code quality
• Ability to override capability on ElectroluxDevice based on the model / type
• Move catalog to its own module(s) and out of const.py
• Enhance config flow
• add ability to subscribe/unsubscribe to alerts
• add change password / language
• only one instance per account
• Add diagnostics support
• Add sample directory (suggest expanding this with more device types (diagnostics)
• Add Translations for supported languages. (These need to be regenerated when strings change)
• Add support for constant and alert types
• cloud_push over cloud_poll
• Minimise default entities to most useful.
• bump upstream dependancy
• 'Sister' entities capabiity for devices that have their status linked to another (ice maker on/off control and state are different entities, this allows a toggle rather than a button)
• Mapping of values from API to user state
• Mapping of string values to running states for true binary_sensor to work
• Button creation is more dynamic and controllable
• Device type can be forced via the catalog type (simply setting device_class in catalog can chnage the entity type created)