Fix autofocus behavior (#34397)

The "autofocus" was abused or misbehaved:

1. When users visit a page but they are not going to change a field,
then the field shouldn't get "autofocus"
* the "auth" / "user" page: in most cases, users do not want to change
the names
    * see also the GitHub's "settings" page behavior.
2. There shouldn't be duplicate "autofocus" inputs in most cases, only
the first one focuses
3. When a panel is shown, the "autofocus" should get focus
    * "add ssh key" panel

This PR fixes all these problems and by the way remove duplicate
"isElemHidden" function.

templates/org/settings/options.tmpl

@@ -12,7 +12,7 @@
 									<br>{{ctx.Locale.Tr "org.settings.change_orgname_prompt"}}<br>{{ctx.Locale.Tr "org.settings.change_orgname_redirect_prompt"}}
 								</span>
 							</label>
-							<input id="org_name" name="name" value="{{.Org.Name}}" data-org-name="{{.Org.Name}}" autofocus required maxlength="40">
+							<input id="org_name" name="name" value="{{.Org.Name}}" data-org-name="{{.Org.Name}}" required maxlength="40">
 						</div>
 						<div class="field {{if .Err_FullName}}error{{end}}">
 							<label for="full_name">{{ctx.Locale.Tr "org.org_full_name_holder"}}</label>