Comments UI inconsistencies about calibredb.el

[chenyanming]

Now calibredb-entry is renderred with shr, it should fix the issue. Shall we close it?

[chenyanming]

@anaxonda
1 . The comments showed in calibredb-entry are the original data of metadata, we do not add any additional information except the face on it. However, we can improve it and format the HTML into more readable formats in later versions.
2. The comments showed in *calibredb-search* ivy or helm are formated into one-liner through setting calibredb-condense-comments for easy navigation. If you do not like the one-liner, you can set calibredb-condense-comments to nil.
3. If it is slow, you can set a limit for all comments width through
(setq calibredb-comment-width 40) or (setq calibredb-comment-width 0) to hide the comments. You can still view the comments in buffer *calibredb-entry* by pressing v in *calibredb-search* buffer.

[anaxonda]

Thank you for all the work, that is much better now!

One related question, is it possible to set a size limit of the cover image for calibredb-entry? The size is variable depending on the resolution of the cover image.

Otherwise, happy to close the issue now.