Fix SVG blob rendering

app/views/projects/blob/_image.html.haml

 .file-content.image_file
-  %img{ src: namespace_project_raw_path(@project.namespace, @project, @id)}
+  - if blob_svg?(blob)
+    - # We need to scrub SVG but we cannot do so in the RawController
+    - blob.load_all_data!(@repository)
+    - blob = sanitize_svg(blob)
+    %img{ src: "data:#{blob.mime_type};base64,#{Base64.encode64(blob.data)}"}
+  - else
+    %img{ src: namespace_project_raw_path(@project.namespace, @project, @id)}