Search performance improvements

Improved the performance** of job searches and company searches by **up to 30x** when using some of the following filters:

• company_name_partial_match_or
• company_name_partial_match_not
• company_location_pattern_or
• company_description_pattern_or
• company_description_pattern_not
• job_title_pattern_or
• job_title_pattern_not
• job_location_pattern_not
• job_description_pattern_not

This will have effect especially when passing large arrays of values in them (of 50+ elements). Queries that before would take ~50 seconds are now taking 2-3 seconds, according to our tests.