[search] fix for plainto_tsquery for docs search

This is because to_tsquery doesn't work with multiple words not
separated by AND or OR.

src/Gargantext/Database/Query/Facet.hs

@@ -360,7 +360,7 @@ viewDocuments cId t ntId mQuery = proc () -> do
   restrict -< if query == ""
     then pgBool True
     --else (n^.ns_search) @@ (pgTSQuery (T.unpack query))
-    else (n^.ns_search) @@ (toTSQuery $ T.unpack query)
+    else (n^.ns_search) @@ (plaintoTSQuery $ T.unpack query)
  
   returnA  -< FacetDoc (_ns_id        n)
                        (_ns_date      n)

stack.yaml

@@ -44,7 +44,7 @@ extra-deps:
 
   # Databases libs
 - git: https://github.com/delanoe/haskell-opaleye.git
-  commit: 806da7f9fb6fe1032f51c1822fc224b281cdd84f
+  commit: d3ab7acd5ede737478763630035aa880f7e34444
 - git: https://github.com/delanoe/hsparql.git
   commit: 308c74b71a1abb0a91546fa57d353131248e3a7f
 - git: https://github.com/robstewart57/rdf4h.git