Fix sandbox hot reloading

[igor-sirotin]

What does the PR do

Sandbox hot reloading wasn't working. Initially there were invalid watched paths, but also there were other major bugs:

• Multiple windows were appearing
• Tons of QML warnings about accessing null properties
• After 1-2 reloads Sandbox crashed

What I did is:

1. Watch QML file changes instead of directory changes
2. Store QML engine on heap and destroy it for fully singletons reloading
3. Preserve window position and size between reloads
4. Remove explicit CMAKE_OSX_ARCHITECTURES "x86_64"

Affected areas

Sandbox

Show time

Screen.Recording.2023-05-05.at.10.23.24.mov

[status-im-auto]

Jenkins Builds

Click to see older builds (12)

❔	Commit	#️⃣	Finished (UTC)	Duration	Platform	Result
✔️	15ab4f8	#1	2023-05-05 07:25:23	~5 min	tests/imports	📄log
✔️	15ab4f8	#1	2023-05-05 07:26:24	~6 min	tests/nim	📄log
✔️	15ab4f8	#1	2023-05-05 07:28:30	~8 min	macos/aarch64	🍎dmg
✔️	15ab4f8	#1	2023-05-05 07:33:47	~13 min	macos/x86_64	🍎dmg
✔️	15ab4f8	#1	2023-05-05 07:35:37	~15 min	linux/x86_64	📦tgz
✔️	15ab4f8	#1	2023-05-05 07:52:57	~32 min	windows/x86_64	💿exe
✔️	15ab4f8	#1	2023-05-05 07:53:55	~33 min	tests/e2e	📄log
✔️	2fbcecb	#2	2023-05-05 13:33:57	~5 min	tests/imports	📄log
✔️	2fbcecb	#2	2023-05-05 13:35:39	~7 min	tests/nim	📄log
✔️	2fbcecb	#2	2023-05-05 13:36:16	~7 min	macos/aarch64	🍎dmg
✔️	2fbcecb	#2	2023-05-05 13:38:10	~9 min	macos/x86_64	🍎dmg
✔️	2fbcecb	#2	2023-05-05 13:41:22	~13 min	linux/x86_64	📦tgz

❔	Commit	#️⃣	Finished (UTC)	Duration	Platform	Result
✔️	03b5d93	#3	2023-05-05 13:49:46	~5 min	tests/imports	📄log
✔️	03b5d93	#3	2023-05-05 13:51:06	~6 min	tests/nim	📄log
✔️	03b5d93	#3	2023-05-05 14:00:05	~15 min	linux/x86_64	📦tgz
✔️	03b5d93	#3	2023-05-05 14:17:35	~33 min	windows/x86_64	💿exe
✔️	03b5d93	#3	2023-05-05 14:18:07	~33 min	tests/e2e	📄log
✔️	03b5d93	#3	2023-05-05 14:18:34	~34 min	macos/aarch64	🍎dmg
✔️	c98619e	#4	2023-05-05 15:21:50	~10 min	tests/imports	📄log
✔️	c98619e	#4	2023-05-05 15:25:20	~14 min	macos/aarch64	🍎dmg
✔️	c98619e	#4	2023-05-05 15:27:13	~15 min	tests/nim	📄log
✔️	c98619e	#4	2023-05-05 15:30:31	~19 min	linux/x86_64	📦tgz
✔️	c98619e	#4	2023-05-05 15:37:23	~26 min	windows/x86_64	💿exe
✔️	c98619e	#4	2023-05-05 15:50:30	~39 min	macos/x86_64	🍎dmg
✔️	c98619e	#4	2023-05-05 15:57:31	~46 min	tests/e2e	📄log

[caybro]

Nice... I had no idea it supported that feature :)

[borismelnik]

LGTM 👍

[borismelnik]

Nice... I had no idea it supported that feature :)

I thought we not using SandboxApp anymore :D