Export charts and pick measurements by name

Getting a Measurement Control curve into a report meant a screenshot, and finding one measurement among hundreds meant scrolling a narrow list, so the analytics pages now do both from where you already work.

• Added Copy chart as image, Export chart to PNG and Export chart to PDF to the right-click menu of every chart on Measurement Control and Phase Pareto, with the KPI strip included in the picture
• Added measurement picking by name in the filter bar: tick several at once, see the typed characters highlighted in each name, and remove any filter with one click
• Added a shortcut from a measurement's page to Measurement Control, with a date window that already contains the run it came from
• Fixed the date range filter so a date can be typed on the keyboard, keeps its day in every timezone and includes the whole end day, in the run filters and on the usage page
• Fixed the sidebar collapse strip covering the filter list's scrollbar, and made slider handles easier to grab