* Add spread method support for gradients
* Add GradientSpreadMethod enum (Pad, Repeat, Reflect) to vector-types
* Add radio buttons to gradient tool and fill properties panel
* Convert spread method when importing SVGs via usvg
* Sync backup gradient input when changing spread method
* Table<GradientStops> rendering is not yet updated for spread method
* Sync gradient tool options with layer's gradient
* Sync gradient_type and spread_method from the selected
layer's existing gradient to the tool options bar when
switching to the gradient tool
* Refactor has_gradient_on_selected_layers
to reuse a new get_gradient_on_selected_layer helper
* Swap Reflect and Repeat order in UI radio buttons
* Fix alignment of the radio buttons in right panel
* Fix the position of the radio buttons in the tool
* Rename SpreadMethod to SetSpreadMethod
* Move default spread method omission logic
* Render raster images as outlines in Outline mode
* Draw a transformed unit-rectangle stroke instead of raster pixels
* Skip creating blend layers for a raster image in Outline mode
when only blend mode would trigger them
* Rename variable names
* Minor refactor to reduce nesting
* Extract shared outline drawing helper
* Update node-graph/libraries/rendering/src/renderer.rs
Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>
---------
Co-authored-by: Dennis Kobert <dennis@kobert.dev>
Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>
YohYamasaki