Fixes an issue where tags with duplicate values would all update to the same value after editing just one.
Also an adjustment to the parameters that are passed to handleInputKeyDown-- they are now one object. This helps handle an "options" object where more optional features can be turned on and off.
Simplified and unified some font-size declarations, adjusted the "descriptions" for various inputs to be similar structure and appearance, change the components h1 label from "Brew" to "Properties Editor", updated the comment about Publishing.
New button that triggers `submitTag()` method directly (rather than throw onKeyDown event) and passes `null` as the newValue. New `if` condition checks for null on newValue and if true, removes the tag that matches the originalValue.
This *does* currently delete all duplicate tags if they match the one you are deleting. Not sure when you'd ever want duplicate tags, but regardless i'll likely switch this to work via Index, not value.
Component now accepts new tags entered in the always-present input field. Entering a value and hitting Enter submits the tag, and it appears as a new tag.
Updated the tag list keys to be unique (via `index`).
To-Do: empty 'new tag' input after submitting.
Now brew metadata is actually updated and preserved across reloads to match updated tag values. useEffect calls the props.onChange event from the parent component on every change to the valueContext state of this component (right now, after hitting Enter in a tag input).
Currently uses uncontrolled inputs with a `defaultValue` attribute set to the values passed in via props. The input can then be edited, and when `Enter` is pressed, it updates the stored value state. Later, this can be updated to be trigger with `Tab` or clicking outside the active input element.
Clicking on a readTag now converts that tag to a text input, and maintains the tag value. It also closes any other open text inputs amongst the tags (but leaves the "new tag" input open).
Tags are now either "readTag" or "writeTag", with the former being a div with the tag value and the latter a text input with the value.
Minor class name change in LESS.
