feat: add ability to customize backup folder

[edgy-b]

• added setting to choose backup folder

• added pre-selected icons when importing icons.json to icommon

• added Backup / Restore category when device is connected

Resolves #298

[deepsource-io[bot]]

Here's the code health analysis summary for commits 2205451..95848fb. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
Rust	✅ Success	❗ 8 occurences introduced 🎯 7 occurences resolved	View Check ↗
Test coverage	✅ Success		View Check ↗

Code Coverage Report

Metric	Aggregate	Rust
Branch Coverage	100%	0%
Composite Coverage	1.9%	1.9%
Line Coverage	1.9%	1.9%
New Branch Coverage	100%	100%
New Composite Coverage	5.2%	5.2%
New Line Coverage	5.2%	5.2%

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