use 🔒 for closed issue instead of❗so meaning is better conveyed?

[bedrock-adam]

Think this could convey the closed issue action a little better e.g.

before:

after proposed change:

What do you think?

[bedrock-adam]

And possibly 🔓 for opened issue?

[Beatso]

And possibly 🔓 for opened issue?

🔓 kinda feels like the issue was already locked, as if the issue is being reopened. i think ❗makes more sense for opening an issue

[tuunit]

implemented with #97 thank you for the suggestion