Swapped out HTML diff implementation for own, removes tidy depdendancy

app/Http/Controllers/PageRevisionController.php

@@ -3,7 +3,7 @@
 use BookStack\Entities\Tools\PageContent;
 use BookStack\Entities\Repos\PageRepo;
 use BookStack\Exceptions\NotFoundException;
-use GatherContent\Htmldiff\Htmldiff;
+use Ssddanbrown\HtmlDiff\Diff;
 
 class PageRevisionController extends Controller
 {
@@ -72,7 +72,7 @@ public function changes(string $bookSlug, string $pageSlug, int $revisionId)
 
         $prev = $revision->getPrevious();
         $prevContent = $prev->html ?? '';
-        $diff = (new Htmldiff)->diff($prevContent, $revision->html);
+        $diff = Diff::excecute($prevContent, $revision->html);
 
         $page->fill($revision->toArray());
         // TODO - Refactor PageContent so we don't need to juggle this

composer.json

@@ -11,14 +11,12 @@
         "ext-gd": "*",
         "ext-json": "*",
         "ext-mbstring": "*",
-        "ext-tidy": "*",
         "ext-xml": "*",
         "barryvdh/laravel-dompdf": "^0.8.6",
         "barryvdh/laravel-snappy": "^0.4.7",
         "doctrine/dbal": "^2.9",
         "facade/ignition": "^1.4",
         "fideloper/proxy": "^4.0",
-        "gathercontent/htmldiff": "^0.2.1",
         "intervention/image": "^2.5",
         "laravel/framework": "^6.18",
         "laravel/socialite": "^4.3.2",
@@ -32,7 +30,8 @@
         "socialiteproviders/microsoft-azure": "^3.0",
         "socialiteproviders/okta": "^1.0",
         "socialiteproviders/slack": "^3.0",
-        "socialiteproviders/twitch": "^5.0"
+        "socialiteproviders/twitch": "^5.0",
+        "ssddanbrown/htmldiff": "^1.0"
     },
     "require-dev": {
         "barryvdh/laravel-debugbar": "^3.2.8",