[IFT] add icon for LearnProject; fix plugin icon (IDEA-CR-68688)
[IFT] add icon for LearnProject; fix plugin icon (IDEA-CR-68688)

GitOrigin-RevId: 20eeafc57a554bd34e4121a413baac8670a4b90c
allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community