Grocycode, label printing (#1500)

* Grocycode: Productpicker, StockService

* Grocycode: Datamatrix generation

* Grocycode: Display in UI, make Images downloadable

* Grocycode: Do not show on product card

* Grocycode: Stockentry Label view

* Grocycode: Webhooks & Labelprinter Feature

* Grocycode: Manual Label printing

* Grocycode: Print Label from product form

* Quagga2: use zxing for DataMatrix recognition

* Grocycode: Default settings for label printing

* Prepare merge of master

* Grocycode: docs

* Docs: label printing webhook

* Review

- "grocy" is currently written lower-case everywhere, so let's do this also for "grocycode"
- Unified phrases / capitalization
- Minor UI adjustments (mainly context menu item ordering / ordering/spacing on product edit page)
- Documented API changes for Swagger UI (grocy.openapi.json)
- Reverted German localizations (those are managed via Transifex; would cause conflicts when manually edited - will import them later there)
- Reverted a somehow messed up localization string (productform/help text for `cumulate_min_stock_amount_of_sub_products`)
- Suppress deprecation warnings when generating Datamatrix PNG (otherwise the PNG is invalid, https://github.com/jucksearm/php-barcode/issues/3)
- Default `FEATURE_FLAG_LABELPRINTER` to disabled

Co-authored-by: Bernd Bestel <bernd@berrnd.de>

views/layout/default.blade.php

@@ -95,6 +95,14 @@
 		Grocy.CalendarShowWeekNumbers = {{ BoolToString(GROCY_CALENDAR_SHOW_WEEK_OF_YEAR) }};
 		Grocy.GettextPo = {!! $GettextPo !!};
 		Grocy.FeatureFlags = {!! json_encode($featureFlags) !!};
+		Grocy.Webhooks = {
+		@if(GROCY_FEATURE_FLAG_LABELPRINTER && !GROCY_LABEL_PRINTER_RUN_SERVER)
+			"labelprinter" : { 
+				"hook" : "{{ GROCY_LABEL_PRINTER_WEBHOOK}}", 
+				"extra_data" : {!! json_encode(GROCY_LABEL_PRINTER_PARAMS) !!}
+			}
+		@endif
+		};
 
 		@if (GROCY_AUTHENTICATED)
 		Grocy.UserSettings = {!! json_encode($userSettings) !!};