Stop double encoding in the URL

Also stop encoding @. This will make URLs more readable.

Consistently don't encode /. This was enabled by earlier changes that
make sure that all route pattern are regular expressions. The special
:param matching of page.js did not work with `/` chars.

Release-Notes: skip
Change-Id: I15f864505811fa2c04cfb5bbb00b643464f40f3c
diff --git a/polygerrit-ui/app/models/views/group.ts b/polygerrit-ui/app/models/views/group.ts
index 277bcff..2ab3735 100644
--- a/polygerrit-ui/app/models/views/group.ts
+++ b/polygerrit-ui/app/models/views/group.ts
@@ -22,7 +22,7 @@
 }
 
 export function createGroupUrl(state: Omit<GroupViewState, 'view'>) {
-  let url = `/admin/groups/${encodeURL(`${state.groupId}`, true)}`;
+  let url = `/admin/groups/${encodeURL(`${state.groupId}`)}`;
   if (state.detail === GroupDetailView.MEMBERS) {
     url += ',members';
   } else if (state.detail === GroupDetailView.LOG) {