removed dashboard variables, removed headings-font-family variable, created theme variables for links and z-index, removed unused class in _panel_editor and _dashboard

Use TableData for all data in react

Fixed no implicit any for form dropdown & panel model

Don't measure cell widths in react table

Fix threshold editor color picker not working for custom colors

Cleaning up no implicit anys in search_srv and tests

Fixing docs typo in templating.md

chore: Bump react and react-dom to 16.8.4

fix a typo in the example of `percentencode` option

Editors becomes admin when creating dashboards, folders & teams

Re-render gauge / singlestat panels when changing options

Refactoring the bar gauge and the orientation modes

progress: #14714

When user selected Custom as an option for a threshold colors, the Custom color picker did not work. The problem was caused by threshold model not including the default colors for fill and line colors when custom was selected. Now, when changing the type to custom, the default valoues are set.

build: crcmod speedups rsync to gcp for deploy.

build: migrates the build container into the main repo.

fix: refactored so members are loaded by TeamPages and use hideFromTabs instead of filtering out children in navModel