feat: add preset selection to Gradio UI (session based) (#1570)

* add preset selection

uses meta parsing to set presets in user session (UI elements only)

* add LoRA handling

* use default config as fallback value

* add preset refresh on "Refresh All Files" click

* add special handling for default_styles and default_aspect_ratio

* sort styles after preset change

* code cleanup

* download missing models from preset

* set default refiner to "None" in preset realistic

* use state_is_generating for preset selection change

* DRY output parameter handling

* feat: add argument --disable-preset-selection

useful for cloud provisioning to prevent model switches and keep models loaded

* feat: keep prompt when not set in preset, use more robust syntax

* fix: add default return values when preset download is disabled

https://github.com/mashb1t/Fooocus/issues/20

* feat: add translation for preset label

* refactor: unify preset loading methods in config

* refactor: code cleanup

language/en.json

@@ -38,6 +38,7 @@
     "* \"Inpaint or Outpaint\" is powered by the sampler \"DPMPP Fooocus Seamless 2M SDE Karras Inpaint Sampler\" (beta)": "* \"Inpaint or Outpaint\" is powered by the sampler \"DPMPP Fooocus Seamless 2M SDE Karras Inpaint Sampler\" (beta)",
     "Setting": "Setting",
     "Style": "Style",
+    "Preset": "Preset",
     "Performance": "Performance",
     "Speed": "Speed",
     "Quality": "Quality",