[CRITICAL BUG] Skip styling if no box::use() is found

[radbasa]

Have you read the Contributing Guidelines?

Issue #134

Includes a bugfix for R >= 4.3 compatibility. See comments below.

Definition of Done

• [ ] The change is thoroughly documented.
• [ ] The CI passes (R CMD check, linter, unit tests, spelling).
• [ ] Any generated files have been updated (e.g. .Rd files with roxygen2::roxygenise())

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 45.45455% with 6 lines in your changes missing coverage. Please review.

Project coverage is 96.71%. Comparing base (e736931) to head (4339f61). Report is 1 commits behind head on main.

Files	Patch %	Lines
R/namespaced_function_calls.R	0.00%	3 Missing :warning:
R/zzz.R	0.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #138 +/- ## ========================================== - Coverage 97.21% 96.71% -0.51% ========================================== Files 23 24 +1 Lines 1114 1125 +11 ========================================== + Hits 1083 1088 +5 - Misses 31 37 +6 ```

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[radbasa]

Hold on this. Previous CI failed. CI could not properly handle the R version check.

CI good now. R CMD check on CI did not like getRversion().