Update flutter_quill_delta_from_html on pubspec.yaml to fix current issues

[CatHood0]

Description

In the current version of flutter_quill_delta_from_html (1.2.1) html is not supported within a <div> and there are even errors during the parsing of the font-size to a valid value for flutter_quill.

With this new version the inclusion of <div> is officially in the package for HTML like this:

<div><p>Text</p></div>

Will converted on:

{"insert":"Text"},
{"insert":"\n"}

And an important point was fixed, which is the parsing of the font-size and line-height, where if before we used values ​​like: rem, em, pc, pt, etc. the editor threw errors because those values ​​were not valid referenced in this comment:

Previously if we had a:

<p style="font-size: 0.75em">Text</p>

The parsing to Delta was:

{"insert":"Text","attributes":{"size":"0.75"}},
{"insert":"\n"}

Which caused errors in the rendering. Now, with the addition of parsing and calculation based on the unit type, the Delta will have an output such that:

{"insert":"Text","attributes":{"size":"small"}},
{"insert":"\n"}

The default values: 0.75em, 1.5em, and 2.5em will be equivalent to: small, large and huge

Related Issues

Fix #1994
Fix #1990 (comment)

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I titled the PR using Conventional Commits.
• I did not modify the CHANGELOG.md nor the package version in pubspec.yaml files.
• All existing and new tests are passing.
• I have run the commands in ./scripts/before_push.sh and it all passed successfully

Breaking Change

Does your PR require developers to manually update their apps to accommodate your change?

• Yes, this is a breaking change (please indicate that with a ! in the title as explained in Conventional Commits).
• No, this is not a breaking change.