Support heif/heic and other image thumbnails in dolphin. (#1470)

# Pull Request

## Description
I spent some time trying to figure out why heic thumbnails were not
working in dolphin and since most phones's
default image format is heic I think its better someone else does not go
through the same hassle as me.

## Type of change

Please put an `x` in the boxes that apply:

- [ ] **Bug fix** (non-breaking change which fixes an issue)
- [x] **New feature** (non-breaking change which adds functionality)
- [ ] **Breaking change** (fix or feature that would cause existing
functionality to not work as expected)
- [ ] **Documentation update** (non-breaking change; modified files are
limited to the documentations)
- [ ] **Technical debt** (a code change that does not fix a bug or add a
feature but makes something clearer for devs)
- [ ] **Other** (provide details below)

## Checklist

Please put an `x` in the boxes that apply:

- [x] I have read the
[CONTRIBUTING](https://github.com/HyDE-Project/HyDE/blob/master/CONTRIBUTING.md)
document.
- [x] My code follows the code style of this project.
- [x] My commit message follows the [commit
guidelines](https://github.com/HyDE-Project/HyDE/blob/master/COMMIT_MESSAGE_GUIDELINES.md).
- [ ] My change requires a change to the documentation.
- [ ] I have updated the documentation accordingly.
- [ ] I have added a changelog entry.
- [ ] I have added necessary comments/documentation to my code.
- [ ] I have added tests to cover my changes.
- [x] I have tested my code locally and it works as expected.
- [x] All new and existing tests passed.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
* Enhanced image format support and thumbnail generation for improved
media handling across the application.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: kRHYME7

Scripts/pkg_extra.lst

@@ -15,6 +15,7 @@ ddcui                                                  # GUI to control brightne
 # --------------------------------------------------- // Misc
 xdg-desktop-portal-gtk                                 # xdg desktop portal using gtk
 wf-recorder                                          # Screen recorder for wlroots-based compositors such as sway
+kimageformats                                          # plugin for heif/heic and other image formats' support(thumbnail,etc) in qt-based apps
 # emote                                                # emoji picker gtk3
 # wl-screenrec                                         # High performance hardware accelerated wlroots screen recorder // NO support for NVIDIA
 # zbar                                                 # Bar/QR code scanner