Make the keyboard shortcuts Ctrl + Up/Down
behave as Home/End
(issue 7852)
#7858
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It seems that for normal web pages, at least in Firefox, the keyboard shortcuts Ctrl + Up/Down are functionally equivalent to Home/End. This is obviously an edge-case, but can be easily implemented by using the same logic as we do for Home/End.
Fixes #7852.
Please note: I'm finding it slightly difficult to interpret issue #7852, and bug 1285719, since among other things: the title includes the word "reverse" with no other mention of it, and the STR makes reference to print preview which doesn't seem applicable to the PDF viewer.
However, compared to regular web pages in Firefox, I think the behavior of this patch makes sense here.