Clean up a few things to get rid of Warnings

[andrew-edwards]

From R-CMD-check (online, linked from checkmark next to commit), fix some Warnings:

• Warning: '::' or ':::' import not declared from: ‘tibble’
• Warning: Invalid license file pointers: LICENSE

Undocumented data sets:

• grid26 - @travistai2 can you do this one, I'll do the rest. This will help with Easily exported coastwide grid #48
• soi
• test_grid_20

Recent commit should fix this one, just a missing s in clim_anom() help:

• clim_years
• clim_year [not in \usage]

plot_with_uncertainty_discrete:

• y_tick undocumented

[travistai2]

I'm not sure if 'test_grid_20' was used anywhere - I didn't use it.

[andrew-edwards]

Yes, I think I got rid of it (hence the box was ticked). Sorry, that wasn't obvious.

[andrew-edwards]

• Also this one https://github.com/pbs-assess/pacea/actions/runs/8841447116/job/24278561740#step:5:98 about adding ... to plot.XXX() functions. We hadn't included them because they call ggplot functions not base plot. However, I think it's okay to add them in (but not pass them onto anything), as as is done in ggplot itself (?ggplot). Trying one first to see if it changes the warning, but the warning isn't really specific about a particular function.