Change invalid_description to something easier to be understood#452

invalid_description is quite vague and I’m pretty sure most, if not all users that see it initially won’t know what it means
there’s 2(as far as I know) ways when this error occurs

• when the embed is blank
• when the embed name is wrong

could we change the error to, for instance 1 blank_embed and for instance 2 invalid_embed_name or wrong_embed_name ? It makes it easier for users to debug by themselves as well

oke

v8.6