More localization (#358)

* Translate missing items on About page

* Localize import summary dialog

* Make site menu translation reactive

* Localize import options

* Include semi colon in string

* Move API texts to frontend + better status codes

* Provide feedback to user when no meal is planned

* Fix API tests after latest rework

* Add warning for API changes in changelog

* Refactor API texts handling

* Refactor API texts handling #2

* Better API feedback

* Rearrange strings hierarchy

* Add messages upon recipe updated

* Fix 'recipe effected' typo

* Remove snackbar usage in backend

* Translate toolbox

* Provide feedback for tags CRUD

* Fix messed up merge

* Translate sign-up form

* Better feedback for sign-up CRUD

* Refactor log-in API texts handling

* No error message when user is not authenticated

* Remove unimportant console log

mealie/schema/snackbar.py

@@ -1,26 +0,0 @@
-class SnackResponse:
-    @staticmethod
-    def _create_response(message: str, type: str, additional_data: dict = None) -> dict:
-
-        snackbar = {"snackbar": {"text": message, "type": type}}
-
-        if additional_data:
-            snackbar.update(additional_data)
-
-        return snackbar
-
-    @staticmethod
-    def success(message: str, additional_data: dict = None) -> dict:
-        return SnackResponse._create_response(message, "success", additional_data)
-
-    @staticmethod
-    def info(message: str, additional_data: dict = None) -> dict:
-        return SnackResponse._create_response(message, "info", additional_data)
-
-    @staticmethod
-    def warning(message: str, additional_data: dict = None) -> dict:
-        return SnackResponse._create_response(message, "warning", additional_data)
-
-    @staticmethod
-    def error(message: str, additional_data: dict = None) -> dict:
-        return SnackResponse._create_response(message, "error", additional_data)