Fix braille word wrap (#18219)
Fixes #18016
Summary of the issue:
When braille Word wrap is enabled, NVDA doesn't check if the first character of the next braille window is a space, causing that in some cases NVDA Splits text between braille Windows instead of using all braille cells.
Description of user facing changes:
When possible, all braille cells Will be used even if word wrap option is enabled.
Description of developer facing changes:
None.
Description of development approach:
In source/braille.py, the _calculateWindowRowBufferOffsets() function has been modified to check if the next character is a space when Word wrap is True, so that all cells can be used in such cases.
