Export phases and measurements to CSV

Phase Pareto and Measurement Control are the two analytics tables that could not be exported, so getting their data into a spreadsheet meant copying rows by hand.

• Added CSV and JSON export to the phase and measurement lists, available from the selection bar once rows are selected.
• Added a copy-to-clipboard option so selected rows can be pasted straight into a spreadsheet.
• Kept numeric, boolean and text measurement values in separate columns so numbers stay sortable in the exported file.