Jobs list polish & no-results CTA

[sofi-bel]

Refs ENG-41
Refs ENG-59
Refs ENG-61

• Fixed a bug with the hover effect on the search field clear icon
• Fixed a bug where the "Clear all" button text wrapped to two lines when filters were active, including on mobile
• The "Close Filters & Alerts" trigger is always pinned to the right edge
• Added a skeleton loader for infinite scroll
• Fixed a bug with incorrect background on the sort select
• Fixed a CLS bug on desktop and a clipped popover on mobile
• Removed the hover border on the job card
• Updated the clickable area of the job card: on desktop (horizontal layout) it is always at the tags level; on mobile, the entire card is clickable when collapsed, and only the tags area is clickable when expanded
• Updated the "No jobs" card
• Added rel="noopener noreferrer" to links

[viktor-yunenko]

Thank you, rebased, merged 🙏