Bulk bug fix

[tessellis]

Bulk Bug Fix — Multi-Axis & UI

Bug 1 and 2 — Right axis label incorrect / resets on data re-fetch

• saveSelects() extended to persist right-axis sensor/reading selections. After retrieveData() repopulates right menus, saved selections are restored if they still exist in the new dataset

Bug 3 — Right axis defaults to same sensor/reading as left

• initializeRightMenuSelects() now picks the first sensor that differs from the left axis as its default. Falls back to a different reading if only one sensor exists

Bug 4 — Preset button shows raw device name

• button now displays database name (underscores stripped) instead of device/collection name