Feature request: support batch count, output image in ui, switch weight/height in one axis

[bluelovers]

• support batch count
• switch weight/height at same time in one axis
• next/prev image button
• output image in ui

[mcmonkey4eva]

• Not sure what batch count would even do in the context of a grid?
• Width/height in one axis is supported in the Swarm Version of grid gen via "Alt Resolution Height Multiplier" param, which lets you set the width in one axis and set the height as a multiplier of the width (to lock in an aspect ratio). Not supported in auto version yet but a valid feature. Could also make sense to allow eg 1024x1024 albeit the grid page will look wonky with mixed aspect ratios (it already does with mixed sizes).
  The auto webui version does however let you define complex multi-parameter inputs via YAML files, as explained in the readme, and you can absolutely do full resolutions that way.
• Next/prev image button: you mean on the viewer page? just use arrow keys
• output in UI: Supported in Swarm version, not auto webui version atm.