Surface 'Mute error sound' as a System-page checkbox

Move the Sound_EnableErrorSpeech toggle out of the Faster Looting cog
sub-panel into a top-level checkbox on the System page (Graphics and
Sound). The handler is now standalone and applies on login + on click
regardless of the Faster Looting feature, instead of only existing when
faster auto loot was enabled. Removes the buried duplicate and stops the
loot-panel reset from clobbering the setting.

Leatrix_Plus/Leatrix_Plus.lua

@@ -1761,6 +1761,22 @@ function LeaPlusLC:Isolated()
 
     end
 
+    ----------------------------------------------------------------------
+    --	Mute error sound (standalone, independent of Faster Looting)
+    ----------------------------------------------------------------------
+
+    do
+        local function SetMuteErrorSpeech()
+            if LeaPlusLC["MuteErrorSpeech"] == "On" then
+                SetCVar("Sound_EnableErrorSpeech", 0)
+            else
+                SetCVar("Sound_EnableErrorSpeech", 1)
+            end
+        end
+        SetMuteErrorSpeech()
+        LeaPlusCB["MuteErrorSpeech"]:HookScript("OnClick", SetMuteErrorSpeech)
+    end
+
     ----------------------------------------------------------------------
     --	Faster looting
     ----------------------------------------------------------------------
@@ -1785,7 +1801,7 @@ function LeaPlusLC:Isolated()
         LeaPlusLC:MakeCB(FasterLootPanel, "FasterErrorFrame", "Faster Error Frame", 16, -112, false, "If checked, your red error text frame, will be faster to fade|n(1 second instead of 5).")
         LeaPlusLC:MakeCB(FasterLootPanel, "NoLootWorldforged", "Skip auto-loot for Worldforged items", 16, -132, false, "If checked, worldforged items will be left in the loot window instead of being auto-looted, so you can decide which ones to keep.")
         LeaPlusLC:MakeCB(FasterLootPanel, "HideCooldownErrors", "Hide 'Ability not ready' warnings", 16, -152, false, "If checked, the red 'Ability not ready', 'Spell is not ready' and 'Another action is in progress' messages are suppressed.|nOther errors (out of range, line of sight, etc.) still appear.")
-        LeaPlusLC:MakeCB(FasterLootPanel, "MuteErrorSpeech", "Mute error sound", 16, -172, false, "If checked, the spoken error sound (e.g. \"I can't do that yet\") is silenced.|nToggles the Sound_EnableErrorSpeech CVar.")
+        -- "Mute error sound" moved to its own checkbox on the System page (see MuteErrorSpeech on Page7)
 
         LeaPlusLC:MakeTx(FasterLootPanel, "Full Inventory Sound", 356, -72)
         LeaPlusLC:MakeSL(FasterLootPanel, "FullInvSound", "Drag to set the desired sound played when your inventory is Full. Set 0 to disable sound.", 0, 3, 1, 356, -92, "%.0f")
@@ -1842,19 +1858,9 @@ function LeaPlusLC:Isolated()
             LeaPlusLC.cooldownErrorFilterInstalled = true
         end
 
-        local function SetMuteErrorSpeech()
-            if LeaPlusLC["MuteErrorSpeech"] == "On" then
-                SetCVar("Sound_EnableErrorSpeech", 0)
-            else
-                SetCVar("Sound_EnableErrorSpeech", 1)
-            end
-        end
-        SetMuteErrorSpeech()
-
         LeaPlusCB["FullInvSound"]:HookScript("OnValueChanged", SetFullInvSliderText)
         LeaPlusCB["SmallerErrorFrame"]:HookScript("OnClick", SetErrorFrameHeight)
         LeaPlusCB["FasterErrorFrame"]:HookScript("OnClick", SetErroFrameFadeTime)
-        LeaPlusCB["MuteErrorSpeech"]:HookScript("OnClick", SetMuteErrorSpeech)
 
 
 
@@ -1877,11 +1883,9 @@ function LeaPlusLC:Isolated()
             LeaPlusLC["FasterErrorFrame"] = "Off"
             LeaPlusLC["NoLootWorldforged"] = "Off"
             LeaPlusLC["HideCooldownErrors"] = "Off"
-            LeaPlusLC["MuteErrorSpeech"] = "Off"
             LeaPlusLC["FullInvSound"] = 1
             UIErrorsFrame:SetHeight(60)
             UIErrorsFrame:SetTimeVisible(5)
-            SetCVar("Sound_EnableErrorSpeech", 1)
             -- Refresh panel
             FasterLootPanel:Hide();
             FasterLootPanel:Show()
@@ -20445,6 +20449,7 @@ LeaPlusLC:MakeCB(LeaPlusLC[pg], "SetWeatherDensity", "Set weather density", 146,
 LeaPlusLC:MakeCB(LeaPlusLC[pg], "MaxCameraZoom", "Max camera zoom", 146, -152, false, "If checked, you will be able to zoom out to a greater distance.")
 LeaPlusLC:MakeCB(LeaPlusLC[pg], "ViewPortEnable", "Enable viewport", 146, -172, true, "If checked, you will be able to create a viewport.  A viewport adds adjustable black borders around the game world.|n|nThe borders are placed on top of the game world but under the UI so you can place UI elements over them.")
 LeaPlusLC:MakeCB(LeaPlusLC[pg], "NoRestedEmotes", "Silence rested emotes", 146, -192, true, "If checked, emote sounds will be silenced while your character is resting or at the Grim Guzzler.|n|nEmote sounds will be enabled at all other times.")
+LeaPlusLC:MakeCB(LeaPlusLC[pg], "MuteErrorSpeech", "Mute error sound", 146, -212, false, "If checked, the spoken error sound (e.g. \"I can't do that yet\", \"Not enough rage\") is silenced for all failed casts, spells and attacks.|n|nToggles the Sound_EnableErrorSpeech CVar.")
 --LeaPlusLC:MakeCB(LeaPlusLC[pg], "MuteGameSounds"			, 	"Mute game sounds"				,	146, -212, 	false,	"If checked, you will be able to mute a selection of game sounds.")
 --LeaPlusLC:MakeCB(LeaPlusLC[pg], "MuteCustomSounds"			, 	"Mute custom sounds"			,	146, -232, 	false,	"If checked, you will be able to mute your own choice of sounds.")