Added blocklist updating, main nav tweaks

Implemented Oliphant's unified tier 3 blocklist and the supplementary
instance audit file that tracks how many times an instance has been
blocked by a trusted sources member. Keeping the update function manual
for now to make sure it works smooth, then well automate so it checks on
    it's on at regular intervals.

NOTE: Lists used are located at the following urls:
https://codeberg.org/oliphant/blocklists/src/branch/main/blocklists/_unified_tier3_blocklist.csv
https://codeberg.org/oliphant/blocklists/src/branch/main/blocklists/other/domain_audit_file.csv

Also simplified the main nav to just include a link to the den index
when logged in

app/Models/Location.php

@@ -21,5 +21,15 @@ class Location extends Model
     protected $fillable   = [
         "uuid",
         "name",
-        "url", "description", "images", "active", "rating", "added_by", "tags", "created_at", "updated_at"];
+        "url",
+        "description",
+        "images",
+        "active",
+        "rating",
+        "added_by",
+        "tags",
+        "block_count",
+        "created_at",
+        "updated_at"
+    ];
 }