0.6.9+1.20.1

Reminder of breaking changes in 0.6.x

ValidatedEntityAttribute is removed
Custom[Widgets] are moved from the internal widget package to the custom package
Several widgets and other classes have been deleted
PopupWidget has many deprecations, and probably at least one breaking change despite my best efforts. Deprecations scheduled for removal 0.7.0
As of 0.6.3, ActiveButtonWidget is unused and deprecated, marked for removal by 0.7.0
As of 0.6.3, TextlessActionWidget is unused and deprecated, marked for removal by 0.7.0
Possibly more, I didn't take great notes

ValidatedKeybind now stores the keycode in the output file based on a string key, rather than the raw int; but it will still accept the raw int for up-conversion purposes or if the key falls outside the typical set of GLFW keys.
- The format for the key is the same as the minecraft one with the key.[type] prefix removed (except for mouse buttons, those start with mouse.)
- For example, page down is page.down versus the minecraft key.keyboard.page.down
- And right click is mouse.right versus key.mouse.right
ValidatedTriState will now accept boolean inputs from the file, if a user accidentally uses true or false instead of the intended enum form "true" or "false"
"Excess" fields (fields that used to exist in a config but no longer do, for example) are now reported as deserialization errors and removed from the read file.

Integer-type text-box number validation no longer accepts decimal inputs, and the text-box in general no longer accepts any characters except numbers, the minus sign, and decimal if it is a floating-point number.
Fixed the search passing text not dynamically updating based on current pass-fail state of the input test.
Validated Any now properly translates basic settings (again, don't know when this broke)
Fixed servers not properly parsing updates sent from the client, introduced in 0.6.7
Config screen managers are now properly invalidated on joining a new world (with potentially new config values to care about)
Narration of the search bar and search bar option buttons works better, and can recover better from being "interrupted"
Deserialization fixes:
- Basic validation (plain fields) now properly report their errors, leading to a correction of the config file as needed.
- ValidatedAny is now robust against changing the number of fields in the wrapped object. Previously adding fields and then trying to read the pre-existing config file would result in total failure for the object, reverting to defaults.