More entities; status items now update every 5s

What's Changed

For end users

👉 New features
Added many new sensors and a new data update coordinator that pulls most status entities every 5 seconds (items that don't change a lot remain at 60s).

👉 Bug fixes
Bunch of bug fixes, mainly on issues reported in the discussions.

👉 Documentation / Wiki and Lovelace GUI
Added some more pics to /www. Also some small changes to the lovelace page code in 'Entire dashboard page' (Note: No need to do the whole installation again - just replace the page YAML).

For fellow programmers

👉 __init__.py: Major refactoring

• Now two entity types: configuration and status
• Introduced a second coordinator for status entities (updates every 5s)
• Shortened update_data functions by outsourcing major code parts into a separate function collect_entity_values
• Compacted code for initializing dynamic configuration entities; moved logic out of update functions (previously, the entity list was rebuilt from scratch on every update)
• Preparations for adding more status entities in future releases

👉 api.py: Add items for new status coordinator

• Added several new status items, polled every 5s
• Removed redundant items with identical names or contents that were previously polled every 60s
• Work in progress – more items to be added
• Introduced new virtual calculated path, handled inside __init__.py, e.g. path="calculated:ram_total_size" or path="calculated:scale_bytes_per_second:data.volume.series[0].write_rate"

👉 utils.py: Added functions, minor changes

• Added two new functions: scale_bytes_per_second and extract_value_from_path
• Minor changes to existing functions to return properly formatted values

👉 button.py and sensor.py

• Renamed coordinator → configuration_coordinator
• Added status_coordinator where needed

ToDo

👉 Still more entities to be added, particularly dynamic status items, but also static configuration items. I still have a list of ~170 items that are still not in the code.