feat: add curl config

[zhangymPerson]

No description provided.

[smeech]

A straightforward text replacement package.
Well documented, and tags: in _manifest.yml.
Looks safe to merge, but does present various curl commands, so needs double-checking/approval by someone more experienced with these than me.

[smeech]

I've done some reading around curl and am happy the package is pretty safe, even if curl itself has risks. I'll merge it subject to one issue - see Review, below.

It might be interesting to add a global variable, along the lines of:

global_vars:
  - name: curlform
    type: form
    params:
      layout: Target https://[[URL]]

and replace all instances of example.com with {{curlform.URL}} e.g.:

matches:
  - trigger: ":curl:"
    replace: "curl --request GET https://{{curlform.URL}}"

The other optional variables: value, key, file/path etc. could also be supplied by forms in a similar manner, or cursor hints used to position the cursor in simpler cases.

[smeech]

Is there a reason for the mix of https: and http:? The former throughout might be safer? I'd be happy to merge if this is addressed (unless there are good reasons not to).

[zhangymPerson]

Yes, I added the relevant global variables as per your prompt

[zhangymPerson]

@smeech Thank you very much for your guidance. I have learned a better way of configuration from this pr