refactor: explicitly set the display of the mat-paginator-icon to inline

Some CSS resets set the `display` value of the SVG element to `block` which break the design
of the mat-paginator-icon by making it not properly centered inside the button.

Author: ahasall

src/material-experimental/mdc-paginator/paginator.scss

@@ -76,6 +76,7 @@ $button-icon-size: 28px;
 }
 
 .mat-mdc-paginator-icon {
+  display: inline-block;
   width: $button-icon-size;
 
   [dir='rtl'] & {

src/material/paginator/paginator.scss

@@ -69,6 +69,7 @@ $button-icon-size: 28px;
 }
 
 .mat-paginator-icon {
+  display: inline-block;
   width: $button-icon-size;
   fill: currentColor;