Fix tabs

[fhlavac]

closes: #98

• Added name as a key to tabs component in PF3 and MUI.
• Modified priority of variables in adding name as a key to tabs component in PF4.
• Updated documentation of tabs component according to changes made.

[Hyperkid123]

@fhlavac fix the failing snapshots please

[codecov-io]

Codecov Report

Merging #100 into master will not change coverage.
The diff coverage is 66.66%.

@@           Coverage Diff           @@
##           master     #100   +/-   ##
=======================================
  Coverage   83.42%   83.42%           
=======================================
  Files          81       81           
  Lines        1345     1345           
  Branches      318      321    +3     
=======================================
  Hits         1122     1122           
+ Misses        192      190    -2     
- Partials       31       33    +2

Impacted Files	Coverage Δ
...kages/mui-component-mapper/src/form-fields/tabs.js	0% <0%> (ø)	⬆️
...kages/pf4-component-mapper/src/form-fields/tabs.js	100% <100%> (ø)	⬆️
...kages/pf3-component-mapper/src/form-fields/tabs.js	100% <100%> (ø)	⬆️

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[skateman]