Change how identities are shown in commit page

The username is now always shown next to full names. The commit
information should use the full name associated with the commit and the
signature information should use the full name associated with the
profile, provided that it exists.

This should remove any confusion if the author decides to use different
names under the same account at a later point in time.

Author: n0toose

templates/repo/commit_page.tmpl

@@ -147,8 +147,8 @@
 				<div class="gt-df gt-ac author">
 					{{if .Author}}
 						{{avatar $.Context .Author 28 "gt-mr-3"}}
-						{{if .Author.FullName}}
-							<a href="{{.Author.HomeLink}}"><strong>{{.Author.FullName}}</strong></a>
+						{{if .Author.Name}}
+							<a href="{{.Author.HomeLink}}"><strong>{{.Commit.Author.Name}} ({{.Author.Name}})</strong></a>
 						{{else}}
 							<a href="{{.Author.HomeLink}}"><strong>{{.Commit.Author.Name}}</strong></a>
 						{{end}}
@@ -201,7 +201,11 @@
 								<span class="ui text gt-mr-3">{{.locale.Tr "repo.commits.signed_by_untrusted_user_unmatched"}}:</span>
 							{{end}}
 							{{avatar $.Context .Verification.SigningUser 28 "gt-mr-3"}}
-							<a href="{{.Verification.SigningUser.HomeLink}}"><strong>{{.Verification.SigningUser.GetDisplayName}}</strong></a>
+							{{if .Verification.SigningUser.Fullname}}
+								<a href="{{.Verification.SigningUser.HomeLink}}"><strong> {{.Verification.SigningUser.FullName}} ({{.Verification.SigningUser.GetDisplayName}})</strong></a>
+							{{else}}
+								<a href="{{.Verification.SigningUser.HomeLink}}"><strong> ({{.Verification.SigningUser.GetDisplayName}})</strong></a>
+							{{end}}
 						{{else}}
 							<span title="{{.locale.Tr "gpg.default_key"}}">{{svg "gitea-lock-cog" 16 "gt-mr-3"}}</span>
 							<span class="ui text gt-mr-3">{{.locale.Tr "repo.commits.signed_by"}}:</span>