Redo the post sharing buttons

[benlk]

Changes

This pull request makes the following changes:

• adds Largo-style sharing buttons to the top of posts: facebook, twitter, email
• removes the old, nonfunctional sharrre sharing buttons from the top of posts
• copies the Goliath theme JS into this theme to remove the sharrre dependency
• dequeues the sharrre script and styles

Why

For #9 and #GTN

Testing/Questions

Features that this PR affects:

• JS in the theme, broadly
• articles

Questions that need to be answered before merging:

• [x] Is this PR targeting the correct branch in this repository?
• [ ] does removing sharrre break anything?
• [x] do we have any indication that GHN is using Co-Authors Plus? I didn't see any, but I kept the conditions for its support in place.
• [x] what's the right word for the Facebook button? "Share"?

Steps to test this PR:

1. /wp-admin/admin.php?page=goliath-admin : uncheck "show share counter below post"; check "show share buttons above post image"
2. view an article such as /2020/04/reusable-protective-gear-rescue/
3. test the buttons:
   • Facebook button should open a Facebook share intent window
   • Tweet button should open a Twitter share intent window, with the "via" parameter of either 1) the author's twitter handle if that's set in the author profile or 2) the sitewide twitter handle that's used for the twitter button in the header
   • Email button should open your preferred email client with an excerpt and link included
4. test the alternate case of the Tweet button by setting/unsetting the post author's twitter handle. For the post given above, the author is wp-admin/user-edit.php?user_id=140

[joshdarby]

@benlk Am I missing a setting? I checked Show share buttons above post image and unchecked Show share counter below post but still don't see the icons :/

[joshdarby]

Jk, apparently I had the wrong checkboxes checked. This did it

[joshdarby]

I'm seeing 2 new JS errors here coming from the child theme theme.js

theme.js?ver=1588628586:524 Uncaught ReferenceError: ajax_object is not defined
    at Object.initOverlays (theme.js?ver=1588628586:524)
    at Object.init (theme.js?ver=1588628586:34)
    at HTMLDocument.<anonymous> (theme.js?ver=1588628586:4)
    at i (jquery.js?ver=1.12.4-wp:2)
    at Object.fireWith [as resolveWith] (jquery.js?ver=1.12.4-wp:2)
    at Function.ready (jquery.js?ver=1.12.4-wp:2)
    at HTMLDocument.J (jquery.js?ver=1.12.4-wp:2)

coming from if(ajax_object.show_post_quick_view === 'on')

and

theme.js?ver=1588628586:766 Uncaught ReferenceError: ajax_object is not defined
    at Object.initAffixSidebar (theme.js?ver=1588628586:766)
    at theme.js?ver=1588628586:15
    at dispatch (jquery.js?ver=1.12.4-wp:3)
    at r.handle (jquery.js?ver=1.12.4-wp:3)

coming from if(ajax_object.enable_sidebar_affix === 'on')

[joshdarby]

Those are probably happening because we need to redo the localize function found here that pulls in that var

https://github.com/INN/umbrella-ghn/blob/d95b02bae93857f512072dc6a4ce994665091009/wp-content/themes/goliath/theme/theme-functions.php#L175-L200

[benlk]

It does make sense that dequeueing and deregistering the script would delocalize it as well.

58c586c65ed7c8840b55bc4b50f14d7fb26badb9 relocalizes it, as well as making sure that the child theme's JS is the one in use.