Closes#47113
Adds configurable REPL output size limits with two new settings,
`repl.output_max_height_lines` and `repl.output_max_width_columns`, so
large outputs scroll instead of expanding and images scale down to fit
the available space. The output containers in both inline REPL blocks
and notebook cells now respect these bounds, and image sizing uses the
same text metrics as the terminal output for consistent column-based
width calculations.
Release Notes:
- REPL output now supports configurable max height and width limits,
with large outputs scrolling and images scaling to stay within the
viewport.
Casper van Elteren
59cf5581df