NOTE: Whilst flutter supports plural-translations,
we are not using them for unitAmountDisplay,
because it is hard to choose the fitting one,
for doubles.
Similarily to categories and rooms,
the edit product screen is reused as a new-room screen,
which is especially easy, because the user is unable to select
the product id themselves.
NOTE: the dynamic value-unit input is still missing some "subunits"
The view product screen has links to the edit product page,
the view parent page (if available) and a not yet functional
view children screen.
NOTE: The parent product display should be restricted in width,
and the screen is missing value/unit information.
including the ability to
add item into the shopping cart and remove them.
The click events have been implemented,
however the routes do not exist yet.
NOTE: The shopping list item info sheet is still missing
the unit type and value
and some more advanced options, like deleting the item
NOTE: The click action is removed, if the user doesn't
have the required permission and the drag-handle is not shown.
BUG: Editing the list (in any way, other than reordering it),
wont reload the list - hopefully this will be addressed later,
by caching the categories (or removing them from the cache)
and auto-rebuilding on cache-change
Translations are provided in *.arb* format.
Some keys have descriptions
(indicated by leading @-symbol).
Descriptions should not be copied into the translation itself.
Currently only English is supported (app_en.arb),
but German is planned.
Apparently weblate merged .arb support at some time,
so it would be nice to enable community translations at some point.
