Move gifs to git lfs (#5706)

Since we moved pngs to lfs I think we should also move the gifs there.

* [x] I have followed the instructions in the PR template

.gitattributes

@@ -1,6 +1,7 @@
 * text=auto eol=lf
 Cargo.lock linguist-generated=false
 *.png filter=lfs diff=lfs merge=lfs -text
+*.gif filter=lfs diff=lfs merge=lfs -text
 
 # Exclude some small files from LFS:
 crates/eframe/data/* !filter !diff !merge text=auto eol=lf

.github/workflows/png_only_on_lfs.yml

@@ -25,7 +25,7 @@ jobs:
           exclude_pattern=$(printf "|^%s" "${exclude_paths[@]}" | sed 's/^|//')
 
           if comm -23 <(git ls-files | grep -Ev "$exclude_pattern" | sort) <(git lfs ls-files -n | sort) | grep "\.${ext}$"; then
-            echo "Error: Found binary file with extension .$ext not tracked by git LFS. See CONTRIBUTING.md"
+            echo "Error: Found binary file with extension .$ext not tracked by git LFS. See https://github.com/emilk/egui/blob/master/CONTRIBUTING.md#working-with-git-lfs"
             exit 1
           fi
         done

README.md

@@ -11,7 +11,7 @@
 
 
 <div align="center">
-<a href="https://www.rerun.io/"><img src="media/rerun_io_logo.png" width="250"></a>
+<a href="https://www.rerun.io/"><img src="https://github.com/user-attachments/assets/78e79463-4357-461b-bbd1-31aa5ef5e1a2" width="250"></a>
 
 egui development is sponsored by [Rerun](https://www.rerun.io/), a startup building<br>
 an SDK for visualizing streams of multimodal data.
@@ -46,7 +46,7 @@ ui.label(format!("Hello '{name}', age {age}"));
 ui.image(egui::include_image!("ferris.png"));
 ```
 
-<img alt="Dark mode" src="media/demo.gif"> &nbsp; &nbsp; <img alt="Light mode" src="media/demo_light_mode.png" height="278">
+<img alt="Dark mode" src="https://github.com/user-attachments/assets/3b446d29-99d8-4c82-86bb-4d8ef0516017"> &nbsp; &nbsp; <img alt="Light mode" src="https://github.com/user-attachments/assets/a5e7da93-89a8-4ba0-86b8-0fa2228a4f62" height="278">
 
 ## Sections:
 
@@ -136,12 +136,11 @@ Still, egui can be used to create professional looking applications, like [the R
 Check out the [3rd party egui crates wiki](https://github.com/emilk/egui/wiki/3rd-party-egui-crates) for even more
 widgets and features, maintained by the community.
 
-<img src="media/widget_gallery_0.23.gif" width="50%">
+<img src="https://github.com/user-attachments/assets/13e73b76-e456-42bd-8ec9-220802834268" width="50%">
 
 Light Theme:
 
-<img src="media/widget_gallery_0.23_light.png" width="50%">
-
+<img src="https://github.com/user-attachments/assets/2e38972c-a444-4894-b32f-47a2719cf369" width="50%">
 
 ## Dependencies
 `egui` has a minimal set of default dependencies:
@@ -268,7 +267,7 @@ This is not yet as powerful as say CSS, [but this is going to improve](https://g
 
 Here is an example (from https://github.com/a-liashenko/TinyPomodoro):
 
-<img src="media/pompodoro-skin.png" width="50%">
+<img src="https://github.com/user-attachments/assets/e6107237-2547-41d6-996b-9a20ae0345ab" width="50%">
 
 ### How do I use egui with `async`?
 If you call `.await` in your GUI code, the UI will freeze, which is very bad UX. Instead, keep the GUI thread non-blocking and communicate with any concurrent tasks (`async` tasks or other threads) with something like:
@@ -376,7 +375,7 @@ Default fonts:
 ---
 
 <div align="center">
-<a href="https://www.rerun.io/"><img src="media/rerun_io_logo.png" width="440"></a>
+<a href="https://www.rerun.io/"><img src="https://github.com/user-attachments/assets/78e79463-4357-461b-bbd1-31aa5ef5e1a2" width="440"></a>
 
 egui development is sponsored by [Rerun](https://www.rerun.io/), a startup building<br>
 an SDK for visualizing streams of multimodal data.