Better Lazy loading behavior for images & iframes behavior

[dude99]

We can kinda tweak lazy loading behavior a bit for images & iframes via vivaldi://flags/#lazy, but I think we need more options to improve our browsing experience. Currently we are missing options to:

1. Delay loading an image/iframe until user INTERACT with it's placeholder
   Such as CLICK on the placeholder or mouseover it for X miliseconds (with countdown circle). Basically, don't LOAD <video> or <img> element until we interact with it's placeholder. NOTE: This is not Click to Play behavior, cuz it only load the video player after user "interact" with the placeholder, then the player may autoplay the video when it's loaded.

2. Reduce delay period of lazy loading
   Allow us to force loading image/iframes much earlier than default behavior. Some website lazy loading behavior are too slow & it's annoying to wait for a blank placeholder to load when we skipping boring content to get to the good stuff.

3. Progressive lazy loading images behavior
   If previous images are loaded completely then auto loading next image in the same page even before we reaching it. This is good for long pages with text & many images in between - when we are reading text, browser should continue to load some images at the bottom section so that our browsing experience doesn't halt by blank placeholder when we moving downward.

4. Only lazy load large images
   Allow user to set size limit for lazy load images, so that browser will quickly load all small images in the page, & delay loading the large one until we reaching 'em. This will free up bandwidth to load most of the images in the beginning, & then focus on large images later.

That's all, please VOTE if you like my ideas.
Thank you for your support & vote!