Create movers eagerly so they always show in Toggle Anchors

The Extra Action Button, Instance Swap, and class resource frame
movers only got built once their native frame had already appeared
on screen with a resolvable position -- so if the frame never showed
up in a session (e.g. a class resource bar the current class doesn't
use), Toggle Anchors had nothing to display for it. Movers are now
created up front from a default size/position, and just get resized
and anchored once the real frame shows up. Also fixes each mover's
right-click config shortcut, which pointed at a pre-restructure
options path.

Modules/LayerPicker.lua

@@ -19,8 +19,17 @@ local function UpdateFont(button)
 	)
 end
 
+local function SyncHolderSize(button)
+	local holder = _G["CoA_LayerPickerHolder"]
+	button = button or _G[BUTTON_NAME]
+	if holder and button then
+		holder:Size(button:GetSize())
+	end
+end
+
 function CoA:UpdateInstanceButtonFont()
 	UpdateFont()
+	SyncHolderSize()
 end
 
 -- Hooked at file scope, so unlike the rest of the skin it stays live even when
@@ -69,24 +78,26 @@ local function DisableDrag(button)
 	end)
 end
 
-local function SetupMover(button)
-	if CoA.layerPickerMoverCreated then return true end
-
-	local width, height = button:GetSize()
-	if width == 0 or height == 0 then return false end
-
-	local left, bottom = button:GetLeft(), button:GetBottom()
-	if not left or not bottom then return false end
-
+-- Created eagerly (independent of the native LayerPickerFrame ever showing
+-- up) so the mover always appears in Toggle Anchors. The default point below
+-- is only used until the player drags it once; after that E:CreateMover
+-- restores the saved position from E.db.movers.
+local function CreateMoverHolder()
+	if CoA.layerPickerMoverCreated then return end
 	CoA.layerPickerMoverCreated = true
 
 	local holder = CreateFrame("Frame", "CoA_LayerPickerHolder", E.UIParent)
-	holder:Size(width, height)
-	holder:Point("BOTTOMLEFT", E.UIParent, "BOTTOMLEFT", left, bottom)
+	holder:Size(MIN_WIDTH, MIN_HEIGHT)
+	holder:Point("TOPLEFT", E.UIParent, "TOPLEFT", 250, -250)
 
-	E:CreateMover(holder, "CoA_LayerPickerMover", "Instance", nil, nil, nil, "ALL,COA", nil, "CoA,skin,instance")
+	E:CreateMover(holder, "CoA_LayerPickerMover", "Instance", nil, nil, nil, "ALL,COA", nil, "CoA,skins,instanceSwap")
 	holder:SetAllPoints(_G["CoA_LayerPickerMover"])
 	_G["CoA_LayerPickerMover"]:SetFrameStrata("FULLSCREEN")
+end
+
+local function AnchorButton(button)
+	local holder = _G["CoA_LayerPickerHolder"]
+	if not holder then return end
 
 	local function Anchor()
 		button:ClearAllPoints()
@@ -101,8 +112,6 @@ local function SetupMover(button)
 	else
 		Anchor()
 	end
-
-	return true
 end
 
 local function SkinButton(button)
@@ -122,13 +131,17 @@ local function TryHook()
 	if button then
 		DisableDrag(button)
 		SkinButton(button)
-		return SetupMover(button)
+		SyncHolderSize(button)
+		AnchorButton(button)
+		return true
 	end
 
 	return false
 end
 
 function CoA:InitializeLayerPicker()
+	CreateMoverHolder()
+
 	if TryHook() then return end
 
 	self.layerPickerTimer = self:ScheduleRepeatingTimer(function()