Table Panel: Add ability to use text color for value or hide value in gauge cell (#61477)

* BarGauge: New value options

* Fix typings for cell options, add new value mode option for bar gauge cells

* Add BarGauge panel option, tests, and update test dashboard

* Updated

* Added default

* Goodbye trusty console.log

* Update

* Merge changes from main

* Update docs

* Add valuemode doc changes

* Update gdev dashboard

* Update valueMode symbol name to valueDisplayMode

* Use Enums as Opposed to literals, don't calculate values when hidden

* Remove double import

* Fix tests

* One more test fix

* Remove erroneous targets field, fix type of maxDataPoints

* Strip nulls and add index field to Thresholds

* Gen cue

* remove bad targets again

* Fixes

---------

Co-authored-by: Kyle Cunningham <kyle@codeincarnate.com>
Co-authored-by: sam boyer <sdboyer@grafana.com>

pkg/kinds/dashboard/dashboard_types_gen.go

@@ -701,6 +701,9 @@ type Threshold struct {
 	// TODO docs
 	Color string `json:"color"`
 
+	// Threshold index, an old property that is not needed an should only appear in older dashboards
+	Index *int32 `json:"index,omitempty"`
+
 	// TODO docs
 	// TODO are the values here enumerable into a disjunction?
 	// Some seem to be listed in typescript comment