Fix carousel alignment and test perf improvement

[compulim]

Fix #1635.

Background

Alignment was broken due to #1560 and #1561 when showing carousel with bot avatar initials.

This PR will also add tests for carousel and stacked layout, and a bit more stuff:

• Test perf improvement for suggested actions tests
  • Replaced sleep with conditions (a.k.a. proactive retry)
  • Updated snapshots with cursor removed
• Added first page object: hideCursor
  • Will evaluate how effective this coding pattern is, and add more later
• Added timeout settings via constants.json

All tests running locally on my box took 49 seconds.

Changelog

Fixed

• component: Fix #1560 and #1635. Fixed carousel layout did not show date and alignment issues, by @compulim in PR #1561 and #1641

[coveralls]

Pull Request Test Coverage Report for Build 869

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+3.6%) to 52.495%

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Totals
Change from base Build 862:	3.6%
Covered Lines:	879
Relevant Lines:	1522

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💛 - Coveralls

[corinagum]

Partial fix for #1625

[corinagum]

Let's get your two pending PR's in before we worry about this one.

[corinagum]

Pending a question and minor CHANGELOG.md fix :)