feat: add flipping for multiple elements (#5578)

* feat: add flipping when resizing multiple elements

* fix: image elements not flipping its content

* test: fix accidental resizing in grouping test

* fix: angles not flipping vertically when resizing

* feat: add flipping multiple elements with a command

* revert: image elements not flipping its content

This reverts commit cb989a6c66e62a02a8c04ce41f12507806c8d0a0.

* fix: add special cases for flipping text & images

* fix: a few corner cases for flipping

* fix: remove angle flip

* fix: bound text scaling when resizing

* fix: linear elements drifting away after multiple flips

* revert: fix linear elements drifting away after multiple flips

This reverts commit bffc33dd3f.

* fix: linear elements unstable bounds

* revert: linear elements unstable bounds

This reverts commit 22ae9b02c4.

* fix: hand-drawn lines shift after flipping

* test: fix flipping tests

* test: fix the number of context menu items

* fix: incorrect scaling due to ignoring bound text when finding selection bounds

* fix: bound text coordinates not being updated

* fix: lines bound text rotation

* fix: incorrect placement of bound lines on flip

* remove redundant predicates in actionFlip

* update test

* refactor resizeElement with some renaming and comments

* fix grouped bounded text elements not being flipped correctly

* combine mutation for bounded text element

* remove incorrect return

* fix: linear elements bindings after flipping

* revert: remove incorrect return

This reverts commit e6b205ca90.

* fix: minimum size for all elements in selection

---------

Co-authored-by: Ryan Di <ryan.weihao.di@gmail.com>

src/tests/contextmenu.test.tsx

@@ -207,6 +207,8 @@ describe("contextMenu element", () => {
       "deleteSelectedElements",
       "group",
       "addToLibrary",
+      "flipHorizontal",
+      "flipVertical",
       "sendBackward",
       "bringForward",
       "sendToBack",
@@ -258,6 +260,8 @@ describe("contextMenu element", () => {
       "deleteSelectedElements",
       "ungroup",
       "addToLibrary",
+      "flipHorizontal",
+      "flipVertical",
       "sendBackward",
       "bringForward",
       "sendToBack",