1 do_after for ore veins (#14083)

* Ore veins

I dislike rocks just providing generic drops and this factors into mining more.

* fixes

* descriptions

* comment

* every flipping time

* Make mining destroy rocks with 1 hit

Having to click 3 times was pretty annoying.

* a

Content.Client/Damage/DestructibleSystem.cs

@@ -0,0 +1,8 @@
+using Content.Shared.Destructible;
+
+namespace Content.Client.Damage;
+
+public sealed class DestructibleSystem : SharedDestructibleSystem
+{
+
+}