6a6b9ac2bf
Remove use of svg, use unicode characters instead. Run dart format on observatory sources. Sort import statements with import_sorter. No functional changes. TEST=ci, manual Change-Id: I7e4f67be06a27c8ab510ae8e50ce30b162780d30 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426683 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com>