Add Main UI change alerts (#1904)

Refs openhab-webui #3859 and #4163.

Signed-off-by: Florian Hotze <dev@florianhotze.com>

Author: florian-h05

distributions/openhab/src/main/resources/bin/update.lst

@@ -198,6 +198,8 @@ ALERT;Shelly Binding: Thing type shellyplushtg3 was renamed to shellyplusht. Del
 ALERT;SMHI Binding: Due to updates to SMHI's API, the channel ids have changed. Measures have been taken to ensure backwards compatibility, but to avoid future issues all items need to be relinked to the new channels.
 
 [5.2.0]
+ALERT;Main UI: oh-canvas-items now use 100% of the height their bounding box and center vertically in that bounding box. While this fixes incorrect behaviour, it might change the appearance of your oh-canvas-layout pages. In that case, you need to adjust the bounding boxes through their resize handles.
+ALERT;Main UI: oh-category-axis startOnSunday parameter has been removed. For chartType = week, the chart will either start on Sunday or on Monday depending on your locale. For chartType = isoWeek, the chart will always start on Monday. 
 ALERT;AirParif Binding: Due to API evolutions pollens related information have been removed. They are now provided by Atmo France Binding.
 ALERT;Corona Stats Binding: Due to EOL of the website, this add-on has been removed.
 ALERT;MyBMW Binding: Due to BMW security changes, this add-on does not work anymore and has been removed.