fix(analytics): remove charts empty values + remove useless language cache

fix(install): edit host_url helper and remove back() when create .env

app/Models/AnalyticsWebsiteByEntryPageModel.php

@@ -33,7 +33,9 @@ class AnalyticsWebsiteByEntryPageModel extends Model
     public function getData(int $podcastId): array
     {
         if (!($found = cache("{$podcastId}_analytics_website_by_entry_page"))) {
-            $found = $this->select('`entry_page` as `labels`')
+            $found = $this->select(
+                'IF(`entry_page`=\'/\',\'/\',SUBSTRING_INDEX(`entry_page`,\'/\',-1)) as `labels`'
+            )
                 ->selectSum('`hits`', '`values`')
                 ->where([
                     '`podcast_id`' => $podcastId,