* feat: add icon list for demo page of icon
* feat: add copy function for icon list
* feat: get existed icon
* feat: remove some blanks in list.razor
* feat: remove some blanks
* fix: default value is outline for icon list
* fix: click to copy for icon list
* feat: add async to load icon list
* feat: update iconlistService
* chore: update icons
* fix: icon load async
* feat: add application icons in IconlistServices
* fix: remove the exist icon from existed catogory if duplicated
* fix: add @key for list items
* fix: revert the change
Co-authored-by: ElderJames <shunjiey@hotmail.com>
