Analytics v2 finetune

• implemented reusable responsive sidebar menu component
• removed old analytics menu component
• created chart component skeletons to prep for refactor
• refactored first draft of chart component in the 'angular way'
• make chart responsive to resizing
• change lots of formatting/styles in response to UX review
• implement metrics scroller - when metrics container is overflowing, show relevant faders on the side(s) and on desktop-size screens, show buttons that scroll to the next set of available metrics

⚠ Metrics tooltips aren't working for items that you have to scroll to see. Not a problem right now because we only have 2 metrics at a time, but will need to be fixed before add'l metrics are added. See #2177 (closed) ⚠

Will close #2089 (closed) #2126 (closed) #2054 (closed) #2127 (closed) #2054 (closed) #1007 (closed) https://gitlab.com/minds/ux/issues/3 #2194 (closed)