[code_review] Experiment more with further context lines

[marco-c]

We're currently saying (

bugbug/bugbug/tools/code_review.py

Line 128 in 8f4ec79

PROMPT_TEMPLATE_FURTHER_CONTEXT_LINES = """Based on the patch provided below and its related summarization, report the code lines more context is required.

):
Based on the patch provided below and its related summarization, report the code lines more context is required. For that, list the lines with the their associated line numbers, grouping each one on a separated line.
which might not be super clear to the LLM (what does "more context" mean?).

We can try two things here:

• Ask more explicitly how many more lines the LLM wants to see before/after the current shown lines;
• Ask the LLM if it wants to see the entire function sorrounding the current shown lines.