Merge "mediawiki.ui: Add @borderRadius variable to be used for inputs and buttons"

diff --cc resources/src/mediawiki.ui/components/inputs.less
index 77894b3,62ef39a..1da42a4
--- 1/resources/src/mediawiki.ui/components/inputs.less
--- 2/resources/src/mediawiki.ui/components/inputs.less
+++ b/resources/src/mediawiki.ui/components/inputs.less
@@@ -32,9 -32,10 +32,10 @@@
        border: 1px solid @colorFieldBorder;
        .box-sizing(border-box);
        width: 100%;
 -      padding: .3em .3em .3em .6em;
 +      padding: .4em .3em .2em .6em;
        display: block;
        vertical-align: middle;
+       border-radius: @borderRadius;
        // Override user agent stylesheet properties. Instead use parent element.
        color: inherit;
        font-family: inherit;