A new "session" just means to reset most settings to default values, excluding model.
There are a few things that need to be reset:
- Parameters state, except for models and things dependent on model selection (like VAE precision)
- Canvas state, except for the `modelBase`, which is dependent on the model selection
- Canvas staging area state
- LoRAs state
- HRF state
- Style presets state
We also select the canvas tab.
For new gallery sessions, we:
- Open the image viewer
- Set the right panel tab to `gallery`
And for new canvas sessions, we:
- Close the image viewer
- Set the right panel tab to `layers`
- Remove queue front button. Hold shift while clicking `Invoke` button to queue front.
- Restore queue menu actions w/ the reclaimed space.
- Simplify queue interaction hooks.
Previously this badge, floating over the queue menu button next to the invoke button, was rendered within the existing layout. When I initially positioned it, the app layout interfered - it would extend into an area reserved for a flex gap, which cut off the badge.
As a (bad) workaround, I had shifted the whole app down a few pixels to make room for it. What I should have done is what I've done in this commit - render the badge in a portal to take it out of the layout so we don't need that extra vertical padding.
Sleekified some styling a bit too.
