Release notes for Application Observability plugin 0.4.0

Changes

Added support for streaming logs
Added support for custom format in logs page
Changed the metadata caching mechanism
Changed metadata to use the time range
Changed metadata to select the correct datasource
Fixed an issue where the metadata was not properly refreshed for the time range
Fixed an issue with percentages were not being displayed correctly on the Service Inventory page
Fixed an issue with table expansion on the Traces view
Improved the UX of duration and rate panels