Increase limit of comparison stars a user may select

[ivenzor]

There is a hardcoded limit of 10 comparison stars that a user may select. If there are more than 10, the user must re-enter the comparison stars. We could change the limit to 20. If a user takes the time to manually choose 10 or more comparison stars, the additional runtime likely wouldn’t be a significant issue. See this conversation on Slack: https://uol-ets.slack.com/archives/CJJRP4QKV/p1729586384135459

The current limit is hardcoded in inputs.py within the comparison_star_coords function:

def comparison_star_coords(comp_stars, rt_bool):
    if isinstance(comp_stars, list) and 1 <= len(comp_stars) <= 10 and \
            all(isinstance(star, list) for star in comp_stars):
    ...
    else:
        comp_stars = []

    if not comp_stars:
        while True:
            if not rt_bool:
                num_comp_stars = user_input("\nHow many Comparison Stars would you like to use? (1-10): ", type_=int)
                ...

[ivenzor]

I'm working on a PR.

[tamimfatahi]

Let's hold off on increasing the limit. I recommend we keep it at 10 since too many comparison stars can increase the runtime exponentially. Maybe we ignore the limit when adding AAVSO comp star.

[tamimfatahi]

Once Issue #1316 is merged into develop, please implement the suggestion above. I don't want you working on a solution when the code is being changed.