Removed discord autostart and introduced Ignition as default flatpak to allow users to add autostart for themselves

files/system/etc/xdg/autostart/discord.desktop

@@ -1,14 +0,0 @@
-[Desktop Entry]
-Name=Discord
-StartupWMClass=discord
-Comment=All-in-one voice and text chat for gamers that's free, secure, and works on both your desktop and phone.
-GenericName=Internet Messenger
-Exec=/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=com.discordapp.Discord --file-forwarding com.discordapp.Discord @@u %U @@
-Icon=com.discordapp.Discord
-Type=Application
-Categories=Network;InstantMessaging;
-Path=/usr/bin
-X-Desktop-File-Install-Version=0.28
-MimeType=x-scheme-handler/discord;
-X-Flatpak-Tags=proprietary;
-X-Flatpak=com.discordapp.Discord