biggest gridinv update OF ALL TIME (#25834)

* add SaveItemLocation keybind

* make item direction public to avoid having to change between Angle for no reason

* add item location saving

* show

* Added a better save keybind, made it draw saved positions, and trying to save in a position it has already been saved in removes that position.

* w

* code style

* Make taken spots appear blue

* style

* !

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Co-authored-by: deltanedas <@deltanedas:kde.org>
Co-authored-by: notquitehadouken <tripwiregamer@gmail.com>
Co-authored-by: I.K <45953835+notquitehadouken@users.noreply.github.com>

Resources/keybinds.yml

@@ -171,6 +171,9 @@ binds:
 - function: RotateStoredItem
   type: State
   key: MouseRight
+- function: SaveItemLocation
+  type: State
+  key: MouseMiddle
 - function: Drop
   type: State
   key: Q