chore: sync project files to match upstream templates (#4537)

- updated some files to match the official CodeIgniter 4 skeleton.
- rebuilt package.json from a clean init and modernized metadata and formatting
- rebuilt composer.json with modernized metadata and formatting
- replaced code of conduct text with markdown
- updated Dockerfile to replace deprecated instruction

app/Config/Mimes.php

@@ -486,10 +486,9 @@ class Mimes
     /**
      * Attempts to determine the best mime type for the given file extension.
      *
-     * @param string $extension
-     * @return array|string|null The mime type found, or none if unable to determine.
+     * @return string|null The mime type found, or none if unable to determine.
      */
-    public static function guessTypeFromExtension(string $extension): array|string|null
+    public static function guessTypeFromExtension(string $extension)
     {
         $extension = trim(strtolower($extension), '. ');
 
@@ -507,7 +506,7 @@ class Mimes
      *
      * @return string|null The extension determined, or null if unable to match.
      */
-    public static function guessExtensionFromType(string $type, ?string $proposedExtension = null): ?string
+    public static function guessExtensionFromType(string $type, ?string $proposedExtension = null)
     {
         $type = trim(strtolower($type), '. ');
 
@@ -523,7 +522,7 @@ class Mimes
         }
 
         // Reverse check the mime type list if no extension was proposed.
-        // This search is order-sensitive!
+        // This search is order sensitive!
         foreach (static::$mimes as $ext => $types) {
             if (in_array($type, (array) $types, true)) {
                 return $ext;

app/Controllers/BaseController.php

@@ -28,12 +28,9 @@ abstract class BaseController extends Controller
     // protected $session;
 
     /**
-     * @param RequestInterface $request
-     * @param ResponseInterface $response
-     * @param LoggerInterface $logger
      * @return void
      */
-    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger): void
+    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
     {
         // Load here all helpers you want to be available in your controllers that extend BaseController.
         // Caution: Do not put the this below the parent::initController() call below.

app/Database/Dockerfile

@@ -1,5 +1,5 @@
 FROM alpine:3.14
-MAINTAINER jekkos
+LABEL maintainer="jekkos"
 
 ADD database.sql /docker-entrypoint-initdb.d/database.sql
 VOLUME /docker-entrypoint-initdb.d

app/Views/errors/html/debug.css

@@ -101,9 +101,11 @@ p.lead {
 }
 
 .tabs {
-    list-style: none inside none;
+    list-style: none;
+    list-style-position: inside;
+    margin: 0;
     padding: 0;
-    margin: 0 0 -1px;
+    margin-bottom: -1px;
 }
 .tabs li {
     display: inline;