Salvage magnet revamp (#23119)

* Generic offering window

* More work

* weh

* Parity

* Progression meter

* magnet

* rona

* PG asteroid work

* code red

* Asteroid spawnings

* clams

* a

* Marker fixes

* More fixes

* Workings of biome asteroids

* A

* Fix this loading code

* a

* Fix masking

* weh

* Fixes

* Magnet claiming

* toe

* petogue

* magnet

* Bunch of fixes

* Fix default

* Fixes

* asteroids

* Fix offerings

* Localisation and a bunch of fixes

* a

* Fixes

* Preliminary draft

* Announcement fixes

* Fixes and bump spawn rate

* Fix asteroid spawns and UI

* More fixes

* Expeditions fix

* fix

* Gravity

* Fix announcement rounding

* a

* Offset tweak

* sus

* jankass

* Fix merge

Content.IntegrationTests/Tests/SalvageTest.cs

@@ -1,6 +1,7 @@
 using System.Linq;
 using Content.Server.Salvage;
 using Content.Shared.CCVar;
+using Content.Shared.Salvage;
 using Robust.Server.GameObjects;
 using Robust.Shared.Configuration;
 using Robust.Shared.GameObjects;