[ui] URIencode search queries

webui/src/App.svelte

@@ -29,7 +29,7 @@
   </Route>
 
   <Route path="/search/:query" let:params>
-    <Search query={params.query} />
+    <Search query={decodeURIComponent(params.query)} />
   </Route>
 
   <Footer on:resize={setBottomMargin} />

webui/src/components/layout/Header.svelte

@@ -16,7 +16,7 @@
     searchQuery = event.detail;
 
     if (searchQuery.length > 0) {
-      navigate(`/search/${searchQuery}`);
+      navigate(`/search/${encodeURIComponent(searchQuery)}`);
     } else {
       navigate("/");
     }