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

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "aa322c53454393ed775cfe4807d54a50",
+    "content-hash": "117d0f84e7d090c1b07e9e54e91c9041",
     "packages": [
         {
             "name": "brick/math",
@@ -1604,6 +1604,94 @@
             ],
             "time": "2022-12-11T20:36:23+00:00"
         },
+        {
+            "name": "league/csv",
+            "version": "9.10.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/thephpleague/csv.git",
+                "reference": "d24b0d484812313b07ab74b0fe4db9661606df6c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/thephpleague/csv/zipball/d24b0d484812313b07ab74b0fe4db9661606df6c",
+                "reference": "d24b0d484812313b07ab74b0fe4db9661606df6c",
+                "shasum": ""
+            },
+            "require": {
+                "ext-json": "*",
+                "ext-mbstring": "*",
+                "php": "^8.1.2"
+            },
+            "require-dev": {
+                "doctrine/collections": "^2.1.3",
+                "ext-dom": "*",
+                "ext-xdebug": "*",
+                "friendsofphp/php-cs-fixer": "^v3.22.0",
+                "phpbench/phpbench": "^1.2.14",
+                "phpstan/phpstan": "^1.10.26",
+                "phpstan/phpstan-deprecation-rules": "^1.1.3",
+                "phpstan/phpstan-phpunit": "^1.3.13",
+                "phpstan/phpstan-strict-rules": "^1.5.1",
+                "phpunit/phpunit": "^10.3.1",
+                "symfony/var-dumper": "^6.3.3"
+            },
+            "suggest": {
+                "ext-dom": "Required to use the XMLConverter and the HTMLConverter classes",
+                "ext-iconv": "Needed to ease transcoding CSV using iconv stream filters"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "9.x-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "src/functions_include.php"
+                ],
+                "psr-4": {
+                    "League\\Csv\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ignace Nyamagana Butera",
+                    "email": "nyamsprod@gmail.com",
+                    "homepage": "https://github.com/nyamsprod/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "CSV data manipulation made easy in PHP",
+            "homepage": "https://csv.thephpleague.com",
+            "keywords": [
+                "convert",
+                "csv",
+                "export",
+                "filter",
+                "import",
+                "read",
+                "transform",
+                "write"
+            ],
+            "support": {
+                "docs": "https://csv.thephpleague.com",
+                "issues": "https://github.com/thephpleague/csv/issues",
+                "rss": "https://github.com/thephpleague/csv/releases.atom",
+                "source": "https://github.com/thephpleague/csv"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sponsors/nyamsprod",
+                    "type": "github"
+                }
+            ],
+            "time": "2023-08-04T15:12:48+00:00"
+        },
         {
             "name": "league/flysystem",
             "version": "3.15.1",