open accordion on aside navigation click

hi guys, im trying to solve this problem with my code: https://code.sololearn.com/WBMCLNBIVpfu when i click on the accordion it works but when i do it with the sidenavbar it doesnt work im trying to understand why when i do the selection it selects all the elements i just want to select the element i click and focus on the title that the a tag selects, thanks.