Improvements and fixes

Paused remote access is now visible and confirmed before changing, longer lists sort and page, and Back, Forward and refresh return you where you were.

• Pages and downloads from a device you open through remote access no longer stop part-way; download your remote-access configuration again for the corrected setting.
• Pausing or restarting remote access now asks you to confirm, naming the plants affected; paused access shows amber and restarting tells you to resume.
• You no longer see grey stretches for a data logger between its readings; only a logger that really stopped reporting shows grey.
• During an analysis you see how many strings have a result on the day being processed, and uncertain orientations count as "partial results".
• You can now sort a plant's components, its battery devices and your remote-access clients by column, and search and page through the longer lists.
• Back and Forward return you to the view you came from: the tab, filter, sort, page or date range. A refresh keeps your open tab.
• A row now shows its actions menu only where you are allowed to change something.
• You can now see how long ago your own online session last exchanged data, and an idle session drops to offline within four minutes.