[Feature request] Open Qterminal with custom tab, title, cmd

[Angell1993]

I've been trying to get Qterminal to open with custom specific tabs, titles and commands, but this is as close as I'm able to get with python and dbus, it would be lovely if this could be implemented..

Set Tab/Terminal Title:
Already possible by double clicking the tab/terminal title

Exec Cmd:
Already possible by double clicking a bookmark

`import subprocess

from pydbus import SessionBus
from gi.repository.GLib import Variant
from pprint import pprint

proc = subprocess.Popen(['qterminal'])
dest = 'org.lxqt.QTerminal-' + str(proc.pid)

subprocess.check_call(['gdbus', 'wait', '--session', dest])

bus = SessionBus()
process = bus.get(dest, '/')['org.lxqt.QTerminal.Process']
current_window = process.getWindows()[0]

window = bus.get(dest, current_window)['org.lxqt.QTerminal.Window']
#window.title = "Terminal000"; #Missing Property

#Will add the first tab on launch then use window.newTab() for as many as you need
window.newTab({'shell': Variant('s', '/bin/bash')}) #Only default shell doesn't use input
window.newTab({'shell': Variant('s', '/bin/fish')}) #Only default shell doesn't use input
#window.newTab({'shell': Variant('s', '/bin/bash')})

print({window}) #Will print Window object
pprint(dir(window)) #Will print Window object available properties

tab000 = window.getTabs()[0]
print({''})
print({tab000}) #Will print Tab/Terminal object
pprint(dir(tab000)) #Will print Tab/Terminal object available properties
#tab000.title = "Steam" #Read Only
#tab000.cmd = "/usr/bin/steam-runtime %U -silent" #Missing Property - Should run command after shell..

tab001 = window.getTabs()[1]
#tab001.title = "Scream-VM" #Read Only
#tab001.cmd = "scream -m /dev/shm/scream-ivshmem" #Missing Property - Should run command after shell..

tab002 = window.getTabs()[2]
#tab002.title = "Scream" #Read Only
#tab002.cmd = "scream" #Missing Property - Should run command after shell..

proc.wait()`