Help with making custom chat button bind with chatbox visibility

Hello this is my first post here! So I was recreating the 2016 - 2020 Roblox topbar and need help making a custom chat button bind with chatbox visibility. My chat button works but the only thing is it does not unselect/select when i click the “/” button on the keyboard like the chatbox opens when you click that button. I looked all over the dev forum but found nothing that helped.

Here is the code:

local StarterGui = game:GetService("StarterGui")
StarterGui:SetCoreGuiEnabled(Enum.CoreGuiType.All, false)
local Player = game.Players.LocalPlayer
local ChatMain = require(Player.PlayerScripts:WaitForChild("ChatScript").ChatMain)
local ChatToggle = script.Parent.Topbar.Left.Chat.Button
Textures = {
	Backpack = {
		Selected = "rbxasset://textures/ui/Backpack/Backpack_Down.png",
		Unselected = "rbxasset://textures/ui/Backpack/Backpack.png"
	},
	Chat = {
		Selected = "rbxasset://textures/ui/Chat/ChatDownFlip.png",
		Unselected = "rbxasset://textures/ui/Chat/ChatFlip.png"
	},
}
ChatToggle.MouseButton1Click:Connect(function()
	ChatMain:ToggleVisibility()
	ChatToggle.Selected = not ChatToggle.Selected
end)
ChatToggle:GetPropertyChangedSignal("Selected"):Connect(function()
	if ChatToggle.Selected == true then
		ChatToggle.Image = Textures.Chat.Selected
	elseif ChatToggle.Selected == false then
		ChatToggle.Image = Textures.Chat.Unselected
	end
end)

I also have edited the Chat scripts in the Chat Service so the default chat button is not visible
game.Chat.ChatScript.ChatMain Line 523

moduleApiTable.CoreGuiEnabled:connect(function(enabled)
	moduleApiTable.IsCoreGuiEnabled = true

	enabled = true
	
	ChatWindow:SetCoreGuiEnabled(enabled)

	if (not enabled) then
		ChatBar:ReleaseFocus()
		InstantFadeOut()
	else
		InstantFadeIn()
	end
end)

Here is a video depicting the issue
https://youtu.be/EdA2SAhQqRE
As you see in the video when i click the button it works fine but when i click “/” on my keyboard it doesn’t select the button, but the chatbox still turns on. I need the button to get selected when you click “/” on the keyboard.

Thank you for your help!

Nevermind, I think UserInputService | Roblox Creator Documentation will do!