Reformat long lines to improve code readability

[stevevanhooser]

Summary

This PR reformats several long lines across the codebase to improve readability and maintain consistent code style. The changes involve collapsing multi-line expressions onto single lines where appropriate.

Key Changes

• Error messages: Consolidated multi-line ImportError messages in src/ndi/fun/plot.py (3 occurrences in bar3(), multichan(), and stimulusTimeseries() functions)
• Boolean expressions: Collapsed multi-line boolean mask expressions into single lines for improved readability
• List comprehensions: Reformatted list comprehension for tick positions calculation
• Conditional expressions: Simplified ternary operator expressions by placing them on single lines
• Function calls: Consolidated long function call arguments onto single lines in test files

Implementation Details

All changes maintain the exact same functionality and logic—this is purely a formatting/style improvement. The modifications follow Python's line-length conventions by removing unnecessary line breaks while keeping code readable and maintainable.

https://claude.ai/code/session_014koNTAiN4GCfCArsHWxnDW