feat(web/panettone): Display issue history

Display the history of an issue (which currently is just opening and
closing) inline with the issue's comments on the issue show page

Change-Id: Id167bceef765cb4c24e86983d1dcd6624d0e5956
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1497
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>

lisp/klatre/klatre.lisp

@@ -94,3 +94,13 @@ separated by SEP."
   (check-type str string)
   (handler-case (parse-integer str)
     (sb-int:simple-parse-error (_) nil)))
+
+;;;
+;;; Function utilities
+;;;
+
+(defun partial (f &rest args)
+  "Return a function that calls F with ARGS prepended to any remaining
+  arguments"
+  (lambda (&rest more-args)
+    (apply f (append args more-args))))

lisp/klatre/package.lisp

@@ -10,4 +10,7 @@
 
    ;; String handling
    #:+dottime-format+ #:format-dottime
-   #:try-parse-integer))
+   #:try-parse-integer
+
+   ;; Function utilities
+   #:partial))