alias: tni and tai as interactive versions of tn i ta, .profile: add startx as alternative to sx

shell/.profile

@@ -35,5 +35,7 @@ if [[ -z "$DISPLAY" && -z "$WAYLAND_DISPLAY" && "$XDG_VTNR" -eq 1 ]]; then
         exec river
     elif which /usr/bin/sx > /dev/null; then
         exec /usr/bin/sx ~/.xsession
+    elif which /usr/bin/startx > /dev/null; then
+        exec /usr/bin/startx
     fi
 fi