style(ecs): add easy-coding-standard to enforce coding style rules for php

- update .devcontainer settings: remove auto-formatting
for php + set intelephense as default formatter
- remove prettier php plugin as it lacks php 8 support
- add captain hook action for checking style pre-commit
- fix style with ecs on all files except views

tests/database/ExampleDatabaseTest.php

@@ -7,7 +7,7 @@ use Tests\Support\Models\ExampleModel;
 
 class ExampleDatabaseTest extends DatabaseTestCase
 {
-    public function setUp(): void
+    protected function setUp(): void
     {
         parent::setUp();