feat: expose the highlight id as a variable for use in the template

[dliberalesso]

It has been pointed to me that any new highlight might rewrite the whole file in obsidian, potentially deleting any block references that point to the highlights file.

By using the higlight id in the template (as shown below), we can prevent any issues that may arise from rewriting the whole highlights file.

# {{{title}}}
#Omnivore

[Read on Omnivore]({{{omnivoreUrl}}})
[Read Original]({{{originalUrl}}})

{{#highlights.length}}
## Highlights

{{#highlights}}
> {{{text}}} [⤴️]({{{highlightUrl}}}) {{#labels}} #{{name}} {{/labels}}
^omni{{highlightID}}
{{#note}}

{{{note}}}
^omni{{highlightID}}n
{{/note}}

{{/highlights}}
{{/highlights.length}}

[sywhb]

I will include this change in the next release!

[github-actions[bot]]

:tada: This PR is included in version 1.4.2 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: