deps: update clap to 3.x

[ClementTsang]

Description

A description of the change and what it does. If relevant (such as any change that modifies the UI), please provide screenshots of the change:

Updates bottom to use clap 3.x.x, along with some small refactoring changes.

Issue

If applicable, what issue does this address?

Closes: #

Testing

If relevant, please state how this was tested. All changes must be tested to work:

Please also indicate which platforms were tested. All platforms directly affected by the change must be tested:

• Windows
• macOS
• Linux

Checklist

If relevant, ensure the following have been met:

• Areas your change affects have been linted using rustfmt (cargo fmt)
• The change has been tested and doesn't appear to cause any unintended breakage
• Documentation has been added/updated if needed (README.md, help menu, etc.)
• The pull request passes the provided CI pipeline
• There are no merge conflicts

[codecov-commenter]

Codecov Report

Merging #690 (ae0f6fb) into master (fbd9512) will increase coverage by 0.63%.
The diff coverage is 25.12%.

@@            Coverage Diff            @@
##           master    #690      +/-   ##
=========================================
+ Coverage    7.21%   7.84%   +0.63%     
=========================================
  Files          52      53       +1     
  Lines        8238    8269      +31     
=========================================
+ Hits          594     649      +55     
+ Misses       7644    7620      -24     

Impacted Files	Coverage Δ
src/app/data_harvester.rs	0.00% <ø> (ø)
src/app/data_harvester/temperature/heim.rs	0.00% <0.00%> (ø)
src/app/data_harvester/temperature/mod.rs	0.00% <0.00%> (ø)
src/app/data_harvester/temperature/nvidia.rs	0.00% <0.00%> (ø)
src/canvas.rs	0.00% <0.00%> (ø)
src/clap.rs	0.00% <0.00%> (ø)
src/data_conversion.rs	0.00% <ø> (ø)
src/lib.rs	0.00% <ø> (ø)
src/options.rs	0.00% <0.00%> (ø)
src/canvas/drawing_utils.rs	57.29% <92.30%> (+57.29%)	⬆️
... and 4 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e682882...ae0f6fb. Read the comment docs.