v0.7.1

Feat/theme change (#36)

* feat: them preference context created

* feat: fix some styles

* feat: change theme on profile menu

* feat: change theme logic

* fix: small fixes

* feat: new token for left panel

* feat: carbon upgrade to 1.21

* feat: light prop on panel section

* feat: fix custom dark mode

* fix: highlighted  style card fixed

* fix: light mode at logout

* fix: removing empty lines

* fix: transform added to jest config

* fix: bcHeader test fixed

* feat: js file transformed into tsx

* feat: JSdoc at themePreference