Re-enable some menu yaligns and reimplement menu sets

these menu yaligns had been disabled for a long time (the menu_y variable was never read)

game/scripts/characters/astoria/events/spells/imperio_tonks.rpy

@@ -1709,8 +1709,7 @@ label ag_st_imperio_E5:
             ton "I..." ("open", "base", "worried", "down")
             gen "Say it!" ("angry", xpos="far_left", ypos="head")
 
-            $ menu_y = 0.7
-            menu:
+            menu (menu_yalign=0.7):
                 "\"You're a selfish slut!\"":
                     ton @ hair horny "Yes!" ("mad", "wide", "shocked", "stare")
                     ton @ hair horny "I'm a selfish slut!" ("open_wide_tongue", "closed", "worried", "mid")

game/scripts/characters/cho/events/quidditch/training.rpy

@@ -412,9 +412,7 @@ label cho_tactics:
     call hide_characters
     call bld
 
-    $ menu_y = 0.74
-
-    menu:
+    menu (menu_yalign=.74):
         gen "(What directions should I give her?)" ("base", xpos="far_left", ypos="head")
         "\"Fly in front of me.\"" if states.cho.ev.quidditch.position != "front":
             jump cho_tactics.change_front

game/scripts/characters/luna/chibi.rpy

@@ -100,15 +100,16 @@ label lun_chibi_scene(action="reset", xpos="mid", ypos="base"):
         $ chair_left_OBJ.hidden = True
 
     if action == "reset":
-        $ menu_y = 0.5
         call lun_chibi("stand", xpos, ypos)
         call gen_chibi("sit_behind_desk")
 
     elif action in ("sit_on_lap", "sit_on_lap_grope"):
         show screen luna_chibi_scene("ch_lun_scene " + action, pos=(218, 205))
 
-    elif action in ("inspect_idle", "inspect_idle_naked", "inspect_lean_idle_naked", "inspect_grope_breasts_naked",
-         "inspect_grope_vagina_naked", "inspect_lean_grope_breasts_naked", "inspect_lean_grope_vagina_naked"):
+    elif action in (
+        "inspect_idle", "inspect_idle_naked", "inspect_lean_idle_naked", "inspect_grope_breasts_naked",
+        "inspect_grope_vagina_naked", "inspect_lean_grope_breasts_naked", "inspect_lean_grope_vagina_naked"
+    ):
         show screen luna_chibi_scene("ch_lun_scene " + action, pos=(218, 205))
 
     return

game/scripts/characters/tonks/chibi.rpy

@@ -157,10 +157,7 @@ label ton_chibi_scene(action="reset", xpos="mid", ypos="base", trans=None):
     call ton_chibi("hide")
     call gen_chibi("hide")
 
-    $ menu_y = 0.75
-
     if action == "reset":
-        $ menu_y = 0.5
         call ton_chibi("stand", xpos, ypos)
         call gen_chibi("sit_behind_desk")