Media modal bottom toolbar cuts-off content in Internet Explorer 11

[afercia]

Please refer to the attached screenshot.

With Internet Explorer 11, the content of the bottom toolbar in the modal is not fully operable: links are partially hidden. Minor: the "Insert" button bottom part is hidden.

Quickly checking, seems to me it's related to the bottom bar height set to auto for some reason. A proper fix would need to investigate a bit why this CSS property was set and if it affects something else.

[mspatovaliyski]

This should address the cutout for the media editor in IE11. The "initial" property is not a valid one for IE

[afercia]

@mspatovaliyski thanks for your patch! Indeed, Internet Explorer 11 doesn't understand the initial value. Tested on a Windows machine with native IE 11 and your suggested fix solves the issue without side effects.

Introduced in [40428] / #40152.

Aside: there's no need to modify the minified and .rtl files, they are generated automatically during the build process :)

[afercia]

Internet Explorer 11 thinking the initial value is invalid.

[afercia]

In 45526:

Media: Make sure the bottom media toolbar content is fully visible with Internet Explorer 11.

Props mspatovaliyski.
Fixes #47502.

[joemcgill]

Reopening this so it can be back-ported to the 5.2 branch.

[audrasjb]

Adding needs-testing keyword to validate if this ticket is good to land in 5.2.3 (should be ok though).

[audrasjb]

Tested on my side against 5.2.2, but unless I'm mistaken [45526] doesn't look to apply cleanly, there should be some dependancies to previous commits.

[JeffPaul]

@afercia any idea which other commit(s) this may be dependent upon? If not, probably best we move this back to 5.3 to limit risk in 5.2.3.

[SergeyBiryukov]

In 45838:

Media: Make sure the bottom media toolbar content is fully visible with Internet Explorer 11.

Props mspatovaliyski, afercia.
Merges [45526] to the 5.2 branch.
Fixes #47502.