add images to gitignore

images now needed to be added with `git add --force`.
This makes accidential commits of large files harder.

.gitignore

@@ -43,3 +43,13 @@ pkgs/clan-app/ui/api/Inventory.ts
 pkgs/clan-app/ui/api/modules_schemas.json
 pkgs/clan-app/ui/api/schema.json
 pkgs/clan-app/ui/.fonts
+
+# To avoid accidentally committing large files
+# Can be added with `git add -f` after reviewing the filesize
+# Large files should be avoided or stored externally i.e. a gitea release
+*.jpg
+*.png
+*.jpeg
+*.gif
+*.mp4
+*.mkv