webshot -> webshot2

[cansavvy]

phantomjs is long dead. Need a new screenshot thing because the docker image won't build with the dead phantomJS. This is replacing webshot with webshot2!

Will have some associated ottrpal docker image updates with this!

Really the make_screenshots.R needs to be dissolved by adding the functionality to the ottrpal. But one thing at a time!

Testing

Here's how I tested this locally:

Ran make_screenshots.R with:

opt$output_dir <- "resources/chapt_screen_images"
opt$git_pat <- "super secret GH_PAT here"
opt$repo <- "jhudsl/OTTR_Template"

Then ran:

ottrpal::bookdown_to_embed_leanpub(
     render = FALSE, 
     chapt_img_key = 'resources/chapt_screen_images/chapter_urls.tsv', 
     make_book_txt = TRUE)