ngrams: Do not compute score on trashed docs

src/Gargantext/Database/Action/Metrics/NgramsByContext.hs

@@ -127,7 +127,8 @@ getOccByNgramsOnlyFast cId lId nt = do
                 WITH cnnv AS
                 ( SELECT DISTINCT context_node_ngrams.context_id,
                     context_node_ngrams.ngrams_id,
-                    nodes_contexts.node_id
+                    nodes_contexts.node_id,
+                    nodes_contexts.category
                   FROM nodes_contexts
                   JOIN context_node_ngrams ON context_node_ngrams.context_id = nodes_contexts.context_id
                 ),
@@ -135,7 +136,7 @@ getOccByNgramsOnlyFast cId lId nt = do
                   (SELECT context_id, ngrams_id, terms
                   FROM cnnv
                   JOIN ngrams ON cnnv.ngrams_id = ngrams.id
-                  WHERE node_id = ?
+                  WHERE node_id = ? AND cnnv.category > 0
                   ),
                 ncids_agg AS
                   (SELECT ngrams_id, terms, array_agg(DISTINCT context_id) AS agg