Squashed commit

Always execute migration 9999 (can be used to fix things manually)
Optimized meal plan navigation / date range filtering
Prepared next release
Pulled translations from Transifex
Various code optimizations

controllers/GrocycodeTrait.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Grocy\Controllers;
+
+use Grocy\Helpers\Grocycode;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use jucksearm\barcode\lib\BarcodeFactory;
+use jucksearm\barcode\lib\DatamatrixFactory;
+
+trait GrocycodeTrait
+{
+	public function ServeGrocycodeImage(ServerRequestInterface $request, ResponseInterface $response, Grocycode $grocycode)
+	{
+		$size = $request->getQueryParam('size', null);
+
+		if (GROCY_GROCYCODE_TYPE == '2D')
+		{
+			$png = (new DatamatrixFactory())->setCode((string) $grocycode)->setSize($size)->getDatamatrixPngData();
+		}
+		else
+		{
+			$png = (new BarcodeFactory())->setType('C128')->setCode((string) $grocycode)->setHeight($size)->getBarcodePngData();
+		}
+
+		$isDownload = $request->getQueryParam('download', false);
+		if ($isDownload)
+		{
+			$response = $response->withHeader('Content-Type', 'application/octet-stream')
+				->withHeader('Content-Disposition', 'attachment; filename=grocycode.png')
+				->withHeader('Content-Length', strlen($png))
+				->withHeader('Cache-Control', 'no-cache')
+				->withHeader('Last-Modified', gmdate('D, d M Y H:i:s') . ' GMT');
+		}
+		else
+		{
+			$response = $response->withHeader('Content-Type', 'image/png')
+				->withHeader('Content-Length', strlen($png))
+				->withHeader('Cache-Control', 'no-cache')
+				->withHeader('Last-Modified', gmdate('D, d M Y H:i:s') . ' GMT');
+		}
+		$response->getBody()->write($png);
+		return $response;
+	}
+}