Feature/hub dhcp discovery

[g4bri3lDev]

This pull request adds automatic network-based (DHCP) discovery and setup for OpenEPaperLink access points (APs) in Home Assistant, improving user experience by making AP integration easier and more seamless. It also updates documentation and translations to reflect the new functionality and error handling.

Automatic AP Discovery and Setup:

• Added DHCP discovery support for OpenEPaperLink APs, allowing Home Assistant to automatically find APs on the network and prompt users to add them. This includes handling the discovery flow, confirmation dialogs, and error cases such as connection failures. (custom_components/open_epaper_link/config_flow.py, custom_components/open_epaper_link/manifest.json) [1] [2] [3] [4]

User Interface and Documentation Updates:

• Updated the integration documentation to recommend automatic discovery via DHCP and clarified the manual setup process as a fallback. (README.md)
• Added new translation strings for DHCP discovery confirmation and connection failure messages in multiple languages (English, German, Polish, Portuguese), ensuring users receive clear prompts and error feedback during setup. (custom_components/open_epaper_link/strings.json, custom_components/open_epaper_link/translations/en.json, custom_components/open_epaper_link/translations/de.json, custom_components/open_epaper_link/translations/pl.json, custom_components/open_epaper_link/translations/pt.json) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]

These changes make it much easier for users to add OpenEPaperLink APs to their Home Assistant instance and provide better feedback if issues arise during discovery or setup.