meilisearch: show keys by name not description

This makes show-key’s output match our documentation as of Meilisearch
1.8.0-8-g4d5971f343c00d45c11ef0cfb6f61e83a8508208. Since I’m not sure
if older versions maybe only provided description, it will fallback to
the latter if no name parameter exists.

lib/mix/tasks/pleroma/search/meilisearch.ex

@@ -126,8 +126,12 @@ def run(["show-keys", master_key]) do
     decoded = Jason.decode!(result.body)
 
     if decoded["results"] do
-      Enum.each(decoded["results"], fn %{"description" => desc, "key" => key} ->
-        IO.puts("#{desc}: #{key}")
+      Enum.each(decoded["results"], fn
+        %{"name" => name, "key" => key} ->
+          IO.puts("#{name}: #{key}")
+
+        %{"description" => desc, "key" => key} ->
+          IO.puts("#{desc}: #{key}")
       end)
     else
       IO.puts("Error fetching the keys, check the master key is correct: #{inspect(decoded)}")