Implement Context menu search for Header filters

[catchmareck]

Functionalities:

• An additional icon that opens a context menu with a search input and a list of operators (such as 'equals', 'contains', 'starts with', etc.). The default list of operators should be adjusted to the type of filter (text/number/date). The list of displayed operators should be customizable in the options.
• Ability to add multiple filters - in the context menu containing the input and list of operators, there should appear a 'Add filter' button that adds another input + operators pair. The maximum number of such additional filters should be adjustable in the options (the 'Add filter' button is displayed only if the maximum number of filters has not been reached).