[fix] snapping bug (#1819)

This PR fixes a crash that was happening with certain snapping
interactions. Closes https://github.com/tldraw/tldraw/issues/1815

### Change Type

- [x] `patch` — Bug fix

### Test Plan

Create a series of equally spaced shapes like this:
 
<img width="870" alt="image"
src="https://github.com/tldraw/tldraw/assets/23072548/416a42af-d8b0-4013-9d3c-341e374e96a4">

Drag the right group into position with the left group while snapping.

### Release Notes

- [fix] crash that could occur when snapping

packages/editor/src/lib/editor/managers/SnapManager.ts

@@ -129,11 +129,8 @@ function findAdjacentGaps(
 	shapeId: TLShapeId,
 	gapLength: number,
 	direction: 'forward' | 'backward',
-	intersection: [number, number],
-	depth: number
+	intersection: [number, number]
 ): Gap[] {
-	if (depth > 100) return []
-
 	// TODO: take advantage of the fact that gaps is sorted by starting position?
 	const matches = gaps.filter(
 		(gap) =>
@@ -151,27 +148,26 @@ function findAdjacentGaps(
 
 	const nextNodes = new Set<TLShapeId>()
 
-	for (const match of matches) {
+	matches.forEach((match) => {
 		const node = direction === 'forward' ? match.endNode.id : match.startNode.id
 		if (!nextNodes.has(node)) {
 			nextNodes.add(node)
-			matches.push(
-				...findAdjacentGaps(
-					gaps,
-					node,
-					gapLength,
-					direction,
-					rangeIntersection(
-						match.breadthIntersection[0],
-						match.breadthIntersection[1],
-						intersection[0],
-						intersection[1]
-					)!,
-					depth + 1
-				)
+			const foundGaps = findAdjacentGaps(
+				gaps,
+				node,
+				gapLength,
+				direction,
+				rangeIntersection(
+					match.breadthIntersection[0],
+					match.breadthIntersection[1],
+					intersection[0],
+					intersection[1]
+				)!
 			)
+
+			matches.push(...foundGaps)
 		}
-	}
+	})
 
 	return matches
 }
@@ -1135,8 +1131,7 @@ export class SnapManager {
 									startNode.id,
 									newGapsLength,
 									'backward',
-									gapBreadthIntersection,
-									0
+									gapBreadthIntersection
 								),
 								{
 									startEdge,
@@ -1151,8 +1146,7 @@ export class SnapManager {
 									endNode.id,
 									newGapsLength,
 									'forward',
-									gapBreadthIntersection,
-									0
+									gapBreadthIntersection
 								),
 							],
 						})
@@ -1185,8 +1179,7 @@ export class SnapManager {
 												endNode.id,
 												length,
 												'forward',
-												gapBreadthIntersection,
-												0
+												gapBreadthIntersection
 											),
 									  ]
 									: [
@@ -1195,8 +1188,7 @@ export class SnapManager {
 												startNode.id,
 												length,
 												'backward',
-												gapBreadthIntersection,
-												0
+												gapBreadthIntersection
 											),
 											{ startEdge, endEdge },
 											{
@@ -1242,8 +1234,7 @@ export class SnapManager {
 									startNode.id,
 									newGapsLength,
 									'backward',
-									gapBreadthIntersection,
-									0
+									gapBreadthIntersection
 								),
 								{
 									startEdge,
@@ -1258,8 +1249,7 @@ export class SnapManager {
 									snap.gap.endNode.id,
 									newGapsLength,
 									'forward',
-									gapBreadthIntersection,
-									0
+									gapBreadthIntersection
 								),
 							],
 						})
@@ -1293,8 +1283,7 @@ export class SnapManager {
 													endNode.id,
 													length,
 													'forward',
-													gapBreadthIntersection,
-													0
+													gapBreadthIntersection
 												),
 										  ]
 										: [
@@ -1303,8 +1292,7 @@ export class SnapManager {
 													startNode.id,
 													length,
 													'backward',
-													gapBreadthIntersection,
-													0
+													gapBreadthIntersection
 												),
 												{ startEdge, endEdge },
 												{