refactor: use clippy::unwrap_used

[ClementTsang]

Description

A description of the change, what it does, and why it was made. If relevant (e.g. UI changes), please also provide screenshots/recordings:

Been meaning to add this for a while. Also a good opportunity to refactor some code where the .unwrap() uses were unnecessary to begin with.

Issue

If applicable, what issue does this address?

Closes: #

Testing

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If this change affects the program, please also indicate which platforms were tested:

• Windows
• macOS (specify version below)
• Linux (specify distro below)
• Other (specify below)

Checklist

Ensure all of these are met:

• If this is a code change, areas your change affects have been linted using (cargo fmt)
• If this is a code change, your changes pass cargo clippy --all -- -D warnings
• If this is a code change, new tests were added if relevant
• If this is a code change, your changes pass cargo test
• The change has been tested to work (see above) and doesn't appear to break other things
• Documentation has been updated if needed (README.md, help menu, docs, configs, etc.)
• There are no merge conflicts
• You have reviewed the changes first
• The pull request passes the provided CI pipeline

Other

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[codecov]

Codecov Report

❌ Patch coverage is 74.26471% with 35 lines in your changes missing coverage. Please review.
✅ Project coverage is 42.80%. Comparing base (85af7ba) to head (aee92f3).

Files with missing lines	Patch %	Lines
...rc/canvas/components/time_graph/base/time_chart.rs	56.09%	18 Missing ⚠️
src/collection/amd.rs	0.00%	6 Missing ⚠️
src/app/states.rs	0.00%	4 Missing ⚠️
src/collection/processes/unix/process_ext.rs	0.00%	3 Missing ⚠️
src/canvas/components/widget_carousel.rs	0.00%	2 Missing ⚠️
src/app/data/store.rs	0.00%	1 Missing ⚠️
src/lib.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1882      +/-   ##
==========================================
+ Coverage   42.74%   42.80%   +0.06%     
==========================================
  Files         115      115              
  Lines       16127    16152      +25     
==========================================
+ Hits         6893     6914      +21     
- Misses       9234     9238       +4     

Flag	Coverage Δ
macos-14	37.95% <68.46%> (+0.03%)	⬆️
ubuntu-latest	44.31% <76.51%> (+0.06%)	⬆️
windows-2022	38.29% <70.63%> (+0.03%)	⬆️

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