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- The check for private IP addresses often did not yield the expected results, especially with errors like: `[Errno -2] Name or service not known`.
- Removed the check for private IP addresses in the URL validation process.
- Simplified the `validate_url` function to focus on validating the URL format and checking the existence of the URL using a HEAD request.

Updated Croatian translation for user interface text

feat: add DuckDuckGo search functionality using duckduckgo_search library

feat: custom HOST env variable on windows

Fix frontend stops responding when backend throws error

Refined Croatian locale translations to improve understanding and clarity for Croatian users. Adjustments made include improving command descriptions, correcting grammar, and adapting the terminology to better fit the software context.

Fixed the issue where a single URL error disrupts the Web Search

Update Chinese Translation

To address the unresolved issue in the LangChain library where a single URL error disrupts the data loading process, the lazy_load method in the WebBaseLoader class has been modified. The enhanced method now handles exceptions appropriately, logging errors and continuing with the remaining URLs.