Allow search restriction in query, like github search (<field>:<subquery>)

[m42e]

Description

Limit the search of tokens to fields.

Describe the solution you'd like

If the query contains an element like: title:old the search for old should be limited to the field with the key 'title'. Addtitionally, the configuration for the keys should have a possibility to assign a shortname to the key.

Describe alternatives you've considered

• Manually parse the query and build a logical search expression: this is missing an 'any' in the search, requires to implement an extra parser.

[github-actions[bot]]

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