*Please note:* This patch only extends the `PDFFindController` implementation itself to support this functionality, however it's *purposely* not exposed in the default viewer.
This replaces the previous `phraseSearch`-parameter, and a `query`-string will now always be interpreted as a phrase-search.
To enable searching for individual words, the `query`-parameter must instead consist of an Array of strings. This way it's now also possible to combine phrase/word searches, with a `query`-parameter looking something like `["Lorem ipsum", "foo", "bar"]` which will search for the phrase "Lorem ipsum" *and* the words "foo" respectively "bar".
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