fix(tabs): md-center-tabs causes tabs to not render

[Splaktar]

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• The commit message follows our guidelines
• Tests for the changes have been added or this is not a bug fix / enhancement
• Docs have been added, updated, or were not required

PR Type

What kind of change does this PR introduce?

[x] Bugfix
[ ] Enhancement
[ ] Documentation content changes
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

md-center-tabs is broken and doesn't render without clicking on the tab bar. Even then it renders partially off screen on Firefox and in some other cases.

Note that only one of center tabs or pagination can be activate at a time.

Issue Number:
Fixes #11566. Relates to #11432.

What is the new behavior?

Only apply the width = 999999px work around when pagination is enabled.
md-center-tabs works properly on Firefox, IE11, Edge, Safari, and Chrome.

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

This preserves the fix to the regression in v1.1.2 where IE11 doesn't show the tab labels when pagination is enabled. While at the same time fixing the regression in v1.1.11 with md-center-tabs.