Make the @as casts actually apply

emmylua only parses the inline cast as `--[[@as T]]`, the spaced form
`--[[ @as T ]]` is treated as a plain comment, so all 149 of them were
doing nothing.

LuaGuiElement.style is a union because a style name can be assigned to
it, so reading it back needs the cast.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

exp_legacy/module/config/gui/player_list_actions.lua

@@ -31,7 +31,7 @@ end
 
 -- gets the action player and a coloured name for the action to be used on
 local function get_action_player(player)
-    local selected_player = get_selected_player(player) --[[ @as LuaPlayer ]]
+    local selected_player = get_selected_player(player) --[[@as LuaPlayer]]
     local selected_player_color = format_player_name(selected_player)
     return selected_player, selected_player_color
 end