leading and trailing "units" in feedvalue widgets

[pb66]

Currently we have 2 fields in the feedvalue widget for defining the unit, and for choosing if that unit text should go before or after the value.

Could we instaed have 2 fields for "unit" text, one before and one after the value. Both do not need to be used, but the option to use either or both is far more flexible than having to choose before or after the value for a single text string.

See https://community.openenergymonitor.org/t/using-feed-data-in-textbox/8322/10?u=pb66

[Paul-Reed]

Not sure I support this or #166
The feedvalue widget was written for a concise purpose - to display the value and it's unit.
It's not practical to cover every user-case within one widget, and if users need greater control, then surely writing html is the way to cover more advanced demands.