Fix 'collisions' command sometimes failing to display

File collisions weren't checked against the mod's install dir.

Imagine if you had two mods. One had a Data folder and its files were
installed into the game's root. Another mod didn't have a Data folder
but it would be installed into the game's Data folder.

If you had file conflicts within these mods, the mods would be flagged
as conflicting, but the file collisions wouldn't be displayed by the
collisions command.

This patch fixes that bug.

ammo/mod_controller.py

@@ -968,6 +968,8 @@ def get_relative_files(mod):
                 else:
                     corrected_name = str(src).split(mod.name, 1)[-1].strip("/")
 
+                if mod.install_dir.name == mod.game_data.name:
+                    corrected_name = mod.game_data.name + f"/{corrected_name}"
                 yield corrected_name
 
         enabled_mods = [i for i in self.mods if i.enabled and i.conflict]