Proposal to remove minimum length of content for xpath engine

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The xpath.py engine requires a minimum length of 1 for the content of the results.

searx/searx/engines/xpath.py

Line 51 in 10c9c16

content = extract_text(eval_xpath_list(result, content_xpath, min_len=1))

It may make sense to remove that requirement in order to allow the implementation of search engines that do not always have a description. In fact some search engines that in 99% of the case have a description like Brave Search (#2857) or Mojeek crash completely if they for some reason included a result with no description.

Instead of getting rid of the length requirement it may also be an option to simply skip the result containing no description instead of raising an exception and therefore hiding all results of the engine.

Or is there a specific reason to require the content? Any thoughts?