Feature/improve localization (#1147)

* use locale to set language header

* rewrite i18n provider and drop dependency

* rename file

* rename CrudMixin to HttpRepo

* refactor: code-cleanup

* add crowdin source

* remove unused translations

* grab translations from dev branch

* add translation support for foods, units, and labels

* remove rich import

tests/data/__init__.py

@@ -2,6 +2,7 @@ from pathlib import Path
 
 CWD = Path(__file__).parent
 
+locale_dir = CWD / "locale"
 
 migrations_paprika = CWD / "migrations/paprika.zip"
 

tests/data/locale/af-ZA.json

@@ -0,0 +1,8 @@
+{
+    "language": "af-ZA",
+    "t1": "test2",
+    "t2": {
+        "1": "value1",
+        "2": "value2"
+    }
+}

tests/data/locale/en-US.json

@@ -0,0 +1,8 @@
+{
+    "language": "en-US",
+    "t1": "test2",
+    "t2": {
+        "1": "value1",
+        "2": "value2"
+    }
+}