Can we optimize the gif in this new article?

As mentioned on #831 (comment 4358089), some of the gif are quite larges in size on https://www.eclipse.org/topics/ide/articles/how-lonti-created-a-unified-ide-for-apis-automation-and-application-development-with-eclipse-theia/

@gnugomez Can you take a look and see if we could optimize them?