Even more linting fixes

Signed-off-by: Severin Kaderli <severin@kaderli.dev>

install

@@ -108,9 +108,10 @@ is_yay_installed=$(command -v yay)
 # Install yay if not already installed
 if [ -z "${is_yay_installed}" ]; then
     git clone https://aur.archlinux.org/yay.git
-    cd yay
+    (
+    cd yay || exit
     makepkg -si --noconfirm --skippgpcheck
-    cd ..
+    )
     rm -rf yay
 else
     print_log "yay is already installed"