* Add speech rate setting
* Add volume slider
* New speech manager skeleton
* User API key from resx
* Implement voice list retrieve via new api
* Rewrite to use ObAPI, remove all dependancies
* Use volume setting
* Clean up using statements
* Volume and timing adjustments
* Lookup rate value
* Use numeric rates for tighter spread
* Manage plugin data folder via core interface
* Add check that nullable settings are not null.
* Get file size before it's deleted.
* Improve old settings migration.
* Ignore cache sizes below 1MB
* Re-index orphaned files in cache, purge legacy wav files.
* Call top level error logging for native voice exception.
* Async title and detail requests to remove pause
* Remove NetCoreAudio use of temp files.
* Remove orphan using.
Manipulating active notifications must be done on the Avalonia UI thread. UpdateNotification and CloseNotification were not properly doing this.
Any plugin attempting to use persistent notifications would have encountered these errors.
NOTE: There is not yet hooks for cleaning up persistent/infinite timeout notifications when the APP is closed.
* WIP: initial commit for observatory herald
* Plugin error handling refactor
* make error window non-modal
* tidy up plugin error handling
* first pass for basic herald functionality
* corrections for linux env
* Use FNV hash directly instead of managing through dictionary/index file
* resolve audio queuing issue, switch to personal NetCoreAudio fork
* merge cleanup
* add enable setting, populate defaults
* framework xml doc update
* Adjust settings, add style selection, replace locale with demonym in dropdown list.
* Test is position is on screen before saving/loading.
* use a default that's actually in the list
