Given a string of text and a maximum line width, break the text into lines such that no line exceeds the maximum width. Words should not be split across lines. If a single word is longer than the maximum width, place it on its own line. Return null for null text input. Return an empty list for empty text.
Examples:
Input: text = 'The quick brown fox jumps over', maxWidth = 10
Output: ['The quick', 'brown fox', 'jumps over']
Explanation: Each line fits within 10 characters without splitting words
Input: text = 'Hello', maxWidth = 10
Output: ['Hello']
Explanation: Single word fits on one line
Input: text = 'Supercalifragilistic is fun', maxWidth = 10
Output: ['Supercalifragilistic', 'is fun']
Explanation: Long word exceeds limit but goes on its own line
Input: text = null, maxWidth = 10
Output: null
Explanation: Null input returns null
Input: text = '', maxWidth = 10
Output: []
Explanation: Empty text returns an empty list
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