Rename "Capture Fortress" action ui_names as "Conquer Fortress"
While updating translations, I noticed that classic and multiplayer game.ruleset have a string "Capture Fortress". We recently changed one similar string, causing confusion, to "Conquer Fortress". Same should probably be done for these.
As part of #43200, this has also been posted to http://forum.freeciv.org/f/viewtopic.php?f=14&t=92104
While updating translations, I noticed that classic and multiplayer game.ruleset have a string "Capture Fortress". We recently changed one similar string, causing confusion, to "Conquer Fortress". Same should probably be done for these.
As part of #43200, this has also been posted to http://forum.freeciv.org/f/viewtopic.php?f=14&t=92104