* hardcode sql limits within their respective components instead of
having them configurable
* creating a new DBTypeList defaults it to being unlimited
* SQL_LIMIT_NONE (0) > removed as it only existed for consistency
* SQL_LIMIT_DEFAULT (300) > frontend / Listview::DEFAULT_SIZE
* SQL_LIMIT_SEARCH (500) > Search::DEFAULT_MAX_RESULTS
* SQL_LIMIT_QUICKSEARCH (10) > Search::SUGGESTIONS_MAX_RESULTS
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