keep-alive cache component

Description:

Function: used to cache pages
Usage: generally used in conjunction with routing exits
   
     
 
Life cycle functions related to it (triggered only in cached components):
  `activated`: when cachedFired when the component is opened
`deactivated`: fires when the cached component is hidden
Note:
`keep-alive` is generally not used alone, it will be used with the other two components:
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  *``