* Add http request volume table (#6765)
* init http metrics page
* remove flex-table-column
* add http requests table
* calculate percent change between each counter
* start percent change tests
* style request table
* show percent more/less glyph
* add percent more less tests
* add inline alert about recorded metrics
* make arrows diagonal
* remove conditional inside countersWithChange
* add better error msg
* use tagName and wrapping element a la glimmer components
* extend ClusterRouteBase so auth and seal checks happen
* make table accessible
* remove curlies
* add HttpRequestsTable to storybook
* make table accessible
* use qunit dom for better assertions
* remove EmptyState since we will never have 0 requests
* ensure counters is set in test context
* Http request volume/add barchart (#6814)
* Add http request volume table (#6765)
* init http metrics page
* remove flex-table-column
* add http requests table
* calculate percent change between each counter
* start percent change tests
* style request table
* show percent more/less glyph
* add percent more less tests
* add inline alert about recorded metrics
* make arrows diagonal
* remove conditional inside countersWithChange
* add better error msg
* use tagName and wrapping element a la glimmer components
* extend ClusterRouteBase so auth and seal checks happen
* make table accessible
* remove curlies
* add HttpRequestsTable to storybook
* make table accessible
* use qunit dom for better assertions
* remove EmptyState since we will never have 0 requests
* ensure counters is set in test context
* add http-requests-bar-chart
* add HttpRequestsBarChart tests
* add HttpRequestsBarChart to Storybook
* format total number of requests according to locale
* do not show extra minus sign when percent change is negative
* add link to request metrics in status bar menu
* only show bar chart if we have data for more than 1 month
* make ticks lighter
* ensure charts show data for correct month
* make example counters response look like the adapter response instead of the raw api response
* ensure ui shows the same utc date as the api response
* add format-utc tests
* downgrade to d3 v4 to support ie11
* add gridlines
* move dasharray to css
* use scheduleOnce instead of debounce to prevent multiple re-renders
* add key function to bars
* add exit case when data is no longer in parsedCounters
* fix timestamp in table test
* fix timestamps
* use utcParse and fallback to isoParse for non-UTC dates
* fix bar chart tests
