bug: fix colon at end of process name for now on Linux

[ClementTsang]

Description

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

This fixes an issue in Linux where some process names that ended with ':' would appear when they shouldn't.

Note this is kinda an interim fix; turns out I misunderstood some things about comm/cmdline/basenames which I will address later.

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:

If this is a code change, please also indicate which platforms were 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, doc pages, etc.)
• The pull request passes the provided CI pipeline
• There are no merge conflicts
• If relevant, new tests were added (don't worry too much about coverage)

[codecov]

Codecov Report

❌ Patch coverage is 32.85714% with 47 lines in your changes missing coverage. Please review.
✅ Project coverage is 42.04%. Comparing base (3edd3e1) to head (fc8aead).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/collection/processes/linux/process.rs	0.00%	34 Missing ⚠️
src/collection/processes/linux/mod.rs	63.88%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1800      +/-   ##
==========================================
+ Coverage   41.97%   42.04%   +0.06%     
==========================================
  Files         115      115              
  Lines       16146    16174      +28     
==========================================
+ Hits         6777     6800      +23     
- Misses       9369     9374       +5     

Flag	Coverage Δ
macos-14	37.39% <ø> (ø)
ubuntu-latest	43.59% <32.85%> (+0.07%)	⬆️
windows-2022	37.77% <ø> (ø)

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