Add support for defining file size limit per attachment type

[nuno-vieira]

🔗 Issue Links

Resolves https://github.com/GetStream/ios-issues-tracking/issues/757

🎯 Goal

Add support for defining a file size limit per type through Stream's Dashboard App Settings.

📝 Summary

• Expose sizeLimitInBytes in ChatClient.appSettings.fileUploadConfig and ChatClient.appSettings.imageUploadConfig
• Composer checks the file size limit per type if defined through Stream's Dashboard
• Deprecates ChatClientConfig.maxAttachmentSize

🧪 Manual Testing Notes

NOTE: At the moment, changing the value in the dashboard is still not supported, so to test this it is required to override the values from Proxyman or by using the Stream's CLI API.

Scenario 1 - Value not set in the Dashboard

1. Send an image and/or file with 200MB
2. Should show error with the max attachment size limit reached

Scenario 2 - Set image limit in the dashboard

1. Send an image above the limit defined
2. Should show error with max attachment size limit reached

Scenario 3 - Set file limit in the dashboard

1. Send a file or any other type besides an image above the limit defined
2. Should show error with max attachment size limit reached

☑️ Contributor Checklist

• I have signed the Stream CLA (required)
• This change follows zero ⚠️ policy (required)
• This change should be manually QAed
• Changelog is updated with client-facing changes
• New code is covered by unit tests
• Comparison screenshots added for visual changes
• Affected documentation updated (docusaurus, tutorial, CMS)

[Stream-iOS-Bot]

StreamChat XCMetrics

target	metric	benchmark	branch	performance	status
MessageList	Hitches total duration	10 ms	8.35 ms	16.5% 🔼	🟢
	Duration	2.6 s	2.54 s	2.31% 🔼	🟢
	Hitch time ratio	4 ms per s	3.29 ms per s	17.75% 🔼	🟢
	Frame rate	79 fps	78.12 fps	1.11% 🔼	🟢
	Number of hitches	1	1.0	0.0% 🔽	🟢
ChannelList	Hitches total duration	12.5 ms	9.18 ms	26.56% 🔼	🟢
	Duration	2.6 s	2.55 s	1.92% 🔼	🟢
	Hitch time ratio	5 ms per s	3.6 ms per s	28.0% 🔼	🟢
	Frame rate	76 fps	74.71 fps	1.7% 🔼	🟢
	Number of hitches	1.2	0.6	50.0% 🔼	🟢

[nuno-vieira]

Converted to draft, to wait for the Dashboard implementation

[sonarcloud]

Quality Gate passed

Issues
48 New issues
0 Accepted issues

Measures
0 Security Hotspots
89.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud