ui: integrated autocompletion and filtering into SearchView

- QtSearchView was split into QtSearchView and QtSearchBox.
- QtSearchBox contains all Qt elements and can use them purely
- QtSearchView forwards calls from the SearchController to QtSearchBox
- Searching is initiated with MessageSearch to the SearchController
- Autocompletion is initiated with MessageSearchAutocomplete to the SearchController
- The search field is able to create filter queries by only giving autocompletions for the last token in the query
- For named tokens the search field adds their token ids to the query in the form of "A,25" for faster lookup

bug id = #21

src/lib/data/Storage.cpp

@@ -336,15 +336,11 @@ std::string Storage::getNameForNodeWithId(Id id) const
 	}
 }
 
-std::vector<std::string> Storage::getNamesForNodesWithNamePrefix(const std::string& prefix) const
+std::vector<SearchIndex::SearchMatch> Storage::getAutocompletionMatches(const std::string& query) const
 {
-	std::vector<std::string> names;
-	std::vector<SearchIndex::SearchMatch> matches = m_index.findFuzzyMatches(prefix);
-	for (const SearchIndex::SearchMatch& match : matches)
-	{
-		names.push_back(match.node->getFullName());
-	}
-	return names;
+	std::vector<SearchIndex::SearchMatch> matches = m_index.findFuzzyMatches(query);
+	SearchIndex::logMatches(matches, query);
+	return matches;
 }
 
 std::shared_ptr<Graph> Storage::getGraphForActiveTokenIds(const std::vector<Id>& tokenIds) const
@@ -444,8 +440,6 @@ std::vector<Id> Storage::getTokenIdsForQuery(std::string query) const
 
 	LOG_INFO_STREAM(<< '\n' << tree << '\n' << outGraph);
 
-	SearchIndex::logMatches(m_index.findFuzzyMatches(query), query);
-
 	return outGraph.getTokenIds();
 }