appview: repo: use committer email for verification in commit view

Signed-off-by: Anirudh Oppiliappan <[e-mail]>

appview/pages/templates/repo/commit.html

···
               <div class="mb-1">This commit was signed with the committer's <span class="text-green-600 font-semibold">known signature</span>.</div>
               <div class="flex items-center gap-2 my-2">
                   {{ i "user" "w-4 h-4" }}
-                  <a href="/{{ $didOrHandle }}">{{ $didOrHandle }}</a>
+                  {{ $committerDidOrHandle := index $.EmailToDidOrHandle $commit.Committer.Email }}
+                  <a href="/{{ $committerDidOrHandle }}">{{ $committerDidOrHandle }}</a>
               </div>
               <div class="my-1 pt-2 text-xs border-t">
                   <div class="text-gray-600 dark:text-gray-300">SSH Key Fingerprint:</div>

appview/repo/repo.go

···
 		return
 	}
 
-	emailToDidMap, err := db.GetEmailToDid(rp.db, []string{result.Diff.Commit.Author.Email}, true)
+	emailToDidMap, err := db.GetEmailToDid(rp.db, []string{result.Diff.Commit.Committer.Email, result.Diff.Commit.Author.Email}, true)
 	if err != nil {
 		log.Println("failed to get email to did mapping:", err)
 	}