Split grid move strategies (#6606)

**Problem:**

The move strategies for grids should be split both functionally as well
as implementation-wise.

**Fix:**

This PR does a bunch of things in order to clean up the grid move
strategies:

- Remove the swap strategy
- Split the rearrange strategy into two distinct strategies: rearrange
and reorder
- Take out the absolute move portions out of the rearrange strategy into
their own strategy
- The reorder strategy performs in-flow moves
- The rearrange strategy performs pinned moves
- When the reorder strategy is active, don't show the animation as well
as the target cell outline
- For pinned elements, give precedence to the rearrange strategy
- For in-flow elements, give precedence to the reorder strategy
- Marked all usages of `EP.parentPath` to detect the parent grid as
`TODO` for a future PR fixing that in favor of actual grid metadata

**Note:**
Imho the tests should be also split in two, in this PR I only updated
the existing ones (which are still relevant tho!) but it'd be good to
have an incremental PR to do that split as well.


Fixes #6607

editor/src/components/canvas/canvas-strategies/canvas-strategies.tsx

@@ -1,5 +1,4 @@
 import React from 'react'
-import { createSelector } from 'reselect'
 import { mapDropNulls, pushUniquelyBy, sortBy } from '../../../core/shared/array-utils'
 import type { ElementInstanceMetadataMap } from '../../../core/shared/element-template'
 import { arrayEqualsByReference, assertNever } from '../../../core/shared/utils'
@@ -68,11 +67,10 @@ import type { InsertionSubject, InsertionSubjectWrapper } from '../../editor/edi
 import { generateUidWithExistingComponents } from '../../../core/model/element-template-utils'
 import { retargetStrategyToChildrenOfFragmentLikeElements } from './strategies/fragment-like-helpers'
 import { MetadataUtils } from '../../../core/model/element-metadata-utils'
-import { gridRearrangeMoveStrategy } from './strategies/grid-rearrange-move-strategy'
+import { gridMoveRearrangeStrategy } from './strategies/grid-move-rearrange-strategy'
 import { resizeGridStrategy } from './strategies/resize-grid-strategy'
-import { rearrangeGridSwapStrategy } from './strategies/rearrange-grid-swap-strategy'
 import { gridResizeElementStrategy } from './strategies/grid-resize-element-strategy'
-import { gridRearrangeMoveDuplicateStrategy } from './strategies/grid-rearrange-move-duplicate-strategy'
+import { gridMoveRearrangeDuplicateStrategy } from './strategies/grid-move-rearrange-duplicate-strategy'
 import { setGridGapStrategy } from './strategies/set-grid-gap-strategy'
 import type { CanvasCommand } from '../commands/commands'
 import { foldAndApplyCommandsInner } from '../commands/commands'
@@ -89,6 +87,8 @@ import {
   GridControls,
   isGridControlsProps,
 } from '../controls/grid-controls-for-strategies'
+import { gridMoveReorderStrategy } from './strategies/grid-move-reorder-strategy'
+import { gridMoveAbsoluteStrategy } from './strategies/grid-move-absolute'
 
 export type CanvasStrategyFactory = (
   canvasState: InteractionCanvasState,
@@ -116,10 +116,11 @@ const moveOrReorderStrategies: MetaCanvasStrategy = (
       convertToAbsoluteAndMoveStrategy,
       convertToAbsoluteAndMoveAndSetParentFixedStrategy,
       reorderSliderStategy,
-      gridRearrangeMoveStrategy,
-      rearrangeGridSwapStrategy,
-      gridRearrangeMoveDuplicateStrategy,
+      gridMoveRearrangeStrategy,
+      gridMoveRearrangeDuplicateStrategy,
+      gridMoveReorderStrategy,
       gridRearrangeResizeKeyboardStrategy,
+      gridMoveAbsoluteStrategy,
     ],
   )
 }