[fix]: Fixed app warnings. Removed unnecessary null-aware operators.#301

SipPetrosyan wants to merge 1 commit intoBilalShahid13:masterBilalShahid13/PersistentBottomNavBar:masterfrom

SipPetrosyan:bugfix/warnings-fixSipPetrosyan/PersistentBottomNavBar:bugfix/warnings-fixCopy head branch name to clipboard