less verbose when uninstalling froster

Author: Victor Machado

install.sh

@@ -207,7 +207,8 @@ backup_old_installation() {
         if pipx list | grep froster >/dev/null 2>&1; then
                 # If froster is installed with pipx, uninstall it and ignore errors
                 # sometime pipx uninstall fails with error code 1 if PIPX_HOME is set, but froster is still uninstalled
-                pipx uninstall froster
+                pipx uninstall froster >/dev/null 2>&1 &
+                spinner $!
         fi
 
         echo "...froster uninstalled"