URL encode search queries (#624)

* URL encode

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

taxonium_component/src/hooks/useServerBackend.jsx

@@ -63,9 +63,9 @@ function useServerBackend(backend_url, sid, url_on_fail) {
       let url =
         backend_url +
         "/search/?json=" +
-        JSON.stringify(singleSearch) +
+        encodeURIComponent(JSON.stringify(singleSearch)) +
         "&sid=" +
-        sid;
+        encodeURIComponent(sid);
 
       const xType =
         boundsForQueries && boundsForQueries.xType