feature/streamline logging and exception messages

[chr-ber]

The most important aspect of this pull request is the addition of a missing string interpolation symbol to one of the log messages, found in the first commit -> https://github.com/dotnet/nuget-trends/commit/c50e6dafe343779b6537cc6a1a906ae052bd7fa3. I encountered this issue when running the project locally.

While I was at it, I also reviewed all log and exception messages in the project and unified their style. I understand if that seems a bit unnecessary; I guess I got carried away. 😅 I believe the first commit should be accepted at the very least. If the rest ends up in the 🗑️. No harm done!

In general, I tried to apply these simple rules:

• All dynamic variables must be wrapped in single quotes.
• Static variables should not be wrapped.
• All messages must end with punctuation.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (c94f1a1) 93.24% compared to head (8805145) 93.24%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #257 +/- ## ======================================= Coverage 93.24% 93.24% ======================================= Files 27 27 Lines 429 429 Branches 33 33 ======================================= Hits 400 400 Misses 27 27 Partials 2 2 ```

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[bruno-garcia]

Thanks again Chris!