[0.81] Support currentActivity after moving from Java to Kotlin

[sharifhh]

Target Branch

0.81

Link to commit or PR to be picked

facebook/react-native#53130

Description

Moving BaseContext to Kotlin broke currentActivity usage in other Kotlin modules.

[react-native-bot]

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[motiz88]

facebook/react-native#53130 has not been merged, not picking for 0.81.1