remove unnecessary dependency on kotlin serialization module from `intellij.platform.core` module (it is an OpenAPI module, some test failed)
move all changes from `intellij.java.frontback.psi` module to `intellij.java.frontback.psi.impl` module so that there will no be a dependency on kotlin serialization modules in the `intellij.java.frontback.psi` module because `intellij.java.frontback.psi` module is an OpenAPI module (some test failed)
(cherry picked from commit a3fa1ab533734442fb6691b0162b3f930a66d9bc)
IJ-MR-116786
GitOrigin-RevId: 81bf0153f9528d9ec58e6b557fa0b7aee80a2c46
