Fix spinner overlapping in webkit search box (#4446) and replace deprecated pseudo class :-moz-placeholder
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Merge pull request #4648 from arlogn/4446-webkit-search-spinner-overlaps

4446 webkit search spinner overlaps
remove participants popover + improve conversations menu
Merge pull request #4644 from svbergerem/conversations-participants

Remove participants popover (- will be back in a different way)
Merge pull request #4653 from svbergerem/3119-change-more-comments-link

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