OptionalconditionsSet the conditions for when the extension should be loaded
OptionalelementThe file location of the element javascript file to load
Optional ReadonlyELEMENT_OptionalelementThe HTML web component name to use such as 'my-dashboard'
Note it is NOT 
OptionaljsThe file location of the javascript file to load
OptionalkindThe kind of the extension, used to group extensions together
This contains properties specific to the type of extension
The friendly name of the extension
OptionaloverwritesDefine one or more extension aliases that this extension should overwrite.
The type of extension such as dashboard etc...
OptionalweightExtensions such as dashboards are ordered by weight with higher numbers being first in the list
The alias of the extension, ensure it is unique