feat(FEC-9942): change ui of the icons state

[RoyBregman]

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Description of the Changes

For icons in the top bar - added hover and active effects Buttons were enlarged from 32px to 36px but padding / margins adjusted in a manner that there should be no effect on buttons size and position from today (Should only enlarge the button background size)

In addition made some cosmetic fixes:

• Removed huge redundant switch case from icons.js - only needed to rename the rewind10 and forward10 to rewind-10 and forward-10.
• changed hard coded #01accd color to $brand-color

CheckLists

• [X] changes have been done against master branch, and PR does not conflict
• [ ] new unit / functional tests have been added (whenever applicable)
• [X] test are passing in local environment
• [X] Travis tests are passing (or test results are not worse than on master branch :))
• [ ] Docs have been updated

[kaltura-hooks]

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