New developer command to test all third-party extensions

* `composer run-script phpstan-third-party`
* Rename the directory for generate.php to `third-party` instead of `tmp`
* Take advantage of PHPStan checkMissingOverrideMethodAttribute https://phpstan.org/config-reference#checkmissingoverridemethodattribute
* Detected and fixed bug in URL of https://github.com/tunbridgep/freshrss-invidious

xExtension-StickyFeeds/extension.php

@@ -2,7 +2,8 @@
 
 declare(strict_types=1);
 
-class StickyFeedsExtension extends Minz_Extension {
+final class StickyFeedsExtension extends Minz_Extension {
+	#[Override]
 	public function init(): void {
 		Minz_View::appendStyle($this->getFileUrl('style.css', 'css'));
 		Minz_View::appendScript($this->getFileUrl('script.js', 'js'));

xExtension-StickyFeeds/metadata.json

@@ -2,7 +2,7 @@
 	"name": "Sticky Feeds",
 	"author": "Marien Fressinaud",
 	"description": "Set the feed aside in the main stream following the window scroll.",
-	"version": "0.2",
+	"version": "0.2.1",
 	"entrypoint": "StickyFeeds",
 	"type": "user"
 }