Crawling Fixes 1: Dragons and Borgs can't do the worm. (#39084)

* Init Commit

* Remove unused code, fix stun visuals bug

* Update Content.Shared/Stunnable/SharedStunSystem.cs

* Some initial changes

* first batch of changes

* Commit

* One line cleanup

* KnockdownStatusEffect ain't worth it.

* Fix 2 bugs

* Fixes

* Remove that actually,

* Commit

* Better solution

* Alright final commit I think

* Add better remarks

* How the fuck did this not get pushed???

* Wait no why was my ryder trying to push that??? I didn't make that change! DON'T DO THAT!!!

* Review

* Don't log that

---------

Co-authored-by: Princess Cheeseballs <66055347+Pronana@users.noreply.github.com>
Co-authored-by: ScarKy0 <106310278+ScarKy0@users.noreply.github.com>

Content.Server/Shuttles/Systems/ShuttleSystem.Impact.cs

@@ -249,7 +249,7 @@ public sealed partial class ShuttleSystem
 
             if (direction.LengthSquared() > minsq)
             {
-                _stuns.TryUpdateKnockdownDuration(uid, knockdownTime);
+                _stuns.TryCrawling(uid, knockdownTime);
                 _throwing.TryThrow(uid, direction, physics, Transform(uid), _projQuery, direction.Length(), playSound: false);
             }
             else