Hotbar Improvements + Item Action Integration Test (#2749)

* my IDE keeps wanting to change this so....

* Add item actions integration test, fix bug where empty item action
dict was left in SharedActionsComponent state

* bigger hotbar arrows

* nice wide hotbar pagination hitboxes

* add ability to switch hotbar loadout
via keybinds

* always highlight on drag over
of actions hotbar

* dont rely on content entity for integration test

Resources/keybinds.yml

@@ -334,3 +334,39 @@ binds:
 - function: Hotbar9
   type: State
   key: Num9
+- function: Loadout1
+  type: State
+  key: Num1
+  mod1: Shift
+- function: Loadout2
+  type: State
+  key: Num2
+  mod1: Shift
+- function: Loadout3
+  type: State
+  key: Num3
+  mod1: Shift
+- function: Loadout4
+  type: State
+  key: Num4
+  mod1: Shift
+- function: Loadout5
+  type: State
+  key: Num5
+  mod1: Shift
+- function: Loadout6
+  type: State
+  key: Num6
+  mod1: Shift
+- function: Loadout7
+  type: State
+  key: Num7
+  mod1: Shift
+- function: Loadout8
+  type: State
+  key: Num8
+  mod1: Shift
+- function: Loadout9
+  type: State
+  key: Num9
+  mod1: Shift