Apc-switched-rack-pdu-control-panel

- Improved: Array syntax improved to only have to specify the ID once instead of eight times.
- Improved: CSS / JS script management: Check if local stored CSS / JS script files exist, otherwise fall back to the JSDelivr CDN
- Improved: Bootstrap version upgraded to 5.3
- Improved: Minimal design adjustments made.
- Added: Dark/light mode dropdown menu to switch between color modes
- Added: Outlet icon not only displays a tooltip containing the GET URL, but also copies the URL to the clipboard when clicked.

- Improved: Adjusted outlet state handling for GET method
- Improved: Outlet symbol shows a tooltip which contains the GET URL
- Added: The pencil symbol next to the PDU name allows to rename the PDU anytime
- Added: JS script management: Check if local stored JS script exist, otherwise it falls back to the JSDelivr CDN for Bootstrap 5
- Added: Dark Mode enablement based on Operating System setting
- Added: Button group to turn ON/OFF/REBOOT all outlet of a single PDU simultaneously

- Fixed: Assignment issue corrected, when several PDUs with the same name are used.
- Improved: A page reload does not trigger a browser pop-up to confirm the form resubmission anymore.

- Fixed: Replaced wrong links to GitHub
- Fixed: Right side of the switch did not react as expected
- Added: Stylesheet management: Check if local stored stylesheet exist, otherwise it falls back to the JSDelivr CDN for Bootstrap 5
- Added: More error scenarios are now covered
- Improved: Enabled also GET requests via URL
- Improved: Script check current outlet state before it toggles automatic to the next state (ON -> OFF, OFF -> ON) when triggered