[fix] Remove all declare keywords from class fields

- Remove declare keywords from all litegraph class fields
- This fixes Babel TypeScript compilation in Playwright i18n tests
- Maintains backward compatibility without useDefineForClassFields

src/lib/litegraph/src/subgraph/EmptySubgraphInput.ts

@@ -12,7 +12,7 @@ import type { SubgraphInputNode } from './SubgraphInputNode'
  * A virtual slot that simply creates a new input slot when connected to.
  */
 export class EmptySubgraphInput extends SubgraphInput {
-  declare parent: SubgraphInputNode
+  parent: SubgraphInputNode
 
   constructor(parent: SubgraphInputNode) {
     super(

src/lib/litegraph/src/subgraph/EmptySubgraphOutput.ts

@@ -12,7 +12,7 @@ import type { SubgraphOutputNode } from './SubgraphOutputNode'
  * A virtual slot that simply creates a new output slot when connected to.
  */
 export class EmptySubgraphOutput extends SubgraphOutput {
-  declare parent: SubgraphOutputNode
+  parent: SubgraphOutputNode
 
   constructor(parent: SubgraphOutputNode) {
     super(

src/lib/litegraph/src/subgraph/SubgraphInput.ts

@@ -30,7 +30,7 @@ import { isNodeSlot, isSubgraphOutput } from './subgraphUtils'
  * Functionally, however, when editing a subgraph, that "subgraph input" is the "origin" or "output side" of a link.
  */
 export class SubgraphInput extends SubgraphSlot {
-  declare parent: SubgraphInputNode
+  parent: SubgraphInputNode
 
   events = new CustomEventTarget<SubgraphInputEventMap>()
 

src/lib/litegraph/src/subgraph/SubgraphNode.ts

@@ -35,7 +35,7 @@ import type { SubgraphInput } from './SubgraphInput'
  * An instance of a {@link Subgraph}, displayed as a node on the containing (parent) graph.
  */
 export class SubgraphNode extends LGraphNode implements BaseLGraph {
-  declare inputs: (INodeInputSlot & Partial<ISubgraphInput>)[]
+  inputs: (INodeInputSlot & Partial<ISubgraphInput>)[]
 
   override readonly type: UUID
   override readonly isVirtualNode = true as const

src/lib/litegraph/src/subgraph/SubgraphOutput.ts

@@ -29,7 +29,7 @@ import { isNodeSlot, isSubgraphInput } from './subgraphUtils'
  * Functionally, however, when editing a subgraph, that "subgraph output" is the "target" or "input side" of a link.
  */
 export class SubgraphOutput extends SubgraphSlot {
-  declare parent: SubgraphOutputNode
+  parent: SubgraphOutputNode
 
   override connect(
     slot: INodeOutputSlot,

src/lib/litegraph/src/widgets/BaseWidget.ts

@@ -47,8 +47,8 @@ export abstract class BaseWidget<TWidget extends IBaseWidget = IBaseWidget>
   /** Minimum gap between label and value */
   static labelValueGap = 5
 
-  declare computedHeight?: number
-  declare serialize?: boolean
+  computedHeight?: number
+  serialize?: boolean
   computeLayoutSize?(node: LGraphNode): {
     minHeight: number
     maxHeight?: number