fix(viewport): emit paneReady when dimensions are ready

* Wait for viewport & nodes to have their dimensions established before emitting paneReady
* Avoids getting 0 values for dimensions on paneReady

package/src/store/getters.ts

@@ -3,10 +3,6 @@ import { State, GraphEdge, GraphNode, ComputedGetters } from '~/types'
 import { getNodesInside, isEdgeVisible } from '~/utils'
 
 export default (state: State): ComputedGetters => {
-  const paneReady = ref(false)
-
-  state.hooks.paneReady.on(() => (paneReady.value = true))
-
   const getEdgeTypes = computed(() => {
     const edgeTypes: Record<string, any> = {
       ...defaultEdgeTypes,
@@ -28,8 +24,6 @@ export default (state: State): ComputedGetters => {
   })
 
   const getNodes = computed<GraphNode[]>(() => {
-    if (!paneReady.value) return []
-
     const nodes = state.nodes.filter((n) => !n.hidden)
     return state.onlyRenderVisibleElements
       ? nodes &&
@@ -48,8 +42,6 @@ export default (state: State): ComputedGetters => {
   })
 
   const getEdges = computed<GraphEdge[]>(() => {
-    if (!paneReady.value) return []
-
     if (!state.onlyRenderVisibleElements)
       return state.edges.filter((e) => !e.hidden && e.targetNode && !e.targetNode.hidden && e.sourceNode && !e.sourceNode.hidden)
     else