Move crash_ui resources and strings to //components/crash/core/browser

This allows sharing the resources on iOS.

TBR=jochen

Review URL: https://codereview.chromium.org/1374763008

Cr-Commit-Position: refs/heads/master@{#352314}
diff --git a/components/components_strings.grd b/components/components_strings.grd
index f71b63d..990a358 100644
--- a/components/components_strings.grd
+++ b/components/components_strings.grd
@@ -135,6 +135,7 @@
       <part file="app_modal_strings.grdp" />
       <part file="autofill_strings.grdp" />
       <part file="bookmark_bar_strings.grdp" />
+      <part file="crash_strings.grdp" />
       <part file="data_reduction_proxy_strings.grdp" />
       <part file="dom_distiller_strings.grdp" />
       <part file="error_page_strings.grdp" />