Improve image handling: auto-resize toggle, SVG support, and DOM parsing fix

What changed

• Advanced setting: Auto Resize (auto_resize). When disabled, img src is set directly to the Gumlet URL instead of the placeholder pixel (no viewport-based resize via gumlet.js for those tags).
• Fix DOM parsing for img/source tags: do not entity-encode the whole tag before loadHTML (was preventing any img from being found).
• Support SVG URLs in replace_image_url.
• Normalize JSON-style escapes in fragments (wp_unslash, /) before parsing.

Fixed PHP 8.4 compatibility

1.3.19

fix versioning

Fixed warnings for newer php versions and improved error logging

Merge pull request #13 from gumlet/fix-warnings

update version

Add latest version support and changelog

1.3.16

add test support and changelog

update version

1.3.15

update version

Resolve conflict

update function name to avoid conflict

update function name to avoid conflict if someone uses both the plugins we have

Added support for Gumlet Video Embed

1.3.12

Add changelog info

1.0.1

smaller logo

Release 1.0

fix params