[cr webui] cr-link-row align text to start

This CL is a CSS only change that aligns text labels in cr-link-row
elements to the start (rather than centering the text).

Bug: 768751
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I6d95194f8b14bb4da559ab7f095b2efcc21af0b3
Reviewed-on: https://chromium-review.googlesource.com/685536Reviewed-by: Scott Chen <scottchen@chromium.org>
Commit-Queue: Dave Schuyler <dschuyler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#504498}

ui/webui/resources/cr_elements/cr_link_row/cr_link_row.html

@@ -48,6 +48,7 @@
       #labelWrapper {
         flex: 1;
         flex-basis: 0.000000001px;
+        text-align: start;
       }
 
       #outer {