This reverts commit 44f2b1f562faf1f36be90385a699a60991db6b86.

this will come in handy when we create repos from firehose records.

avoids path traversal attempts.

Chill, it's not what you think. Helpers and middleware for tracing and
metrics provided by OpenTelemetry.

the pull-source information chip displayed `fork branch` but the two
bits of information were styled differently.

this patch unifies the styles, moves both bits of info into the same
pill, styles them identically, and uses a `:` to separate them
`fork:branch`.