web/user: new end-user interface (#1404)

* web/user: migrate to top navbar

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* web/user: prepare config from server

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* re-sort

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* remove old interface

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* update issue template

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* use notification badge

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* web/user: re-add go-to-admin button

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* *: fix remaining redirects directly to admin

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* make settings better

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* api: ensure sources and stages are sorted

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* web/user: add sessions and consent

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* providers/oauth2: add post wrapper to stage

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* website/docs: add new interface to release notes

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

web/src/elements/sidebar/SidebarUser.ts

@@ -32,7 +32,7 @@ export class SidebarUser extends LitElement {
 
     render(): TemplateResult {
         return html`
-            <a href="#/user" class="pf-c-nav__link user-avatar" id="user-settings">
+            <a href="/if/user/#settings" class="pf-c-nav__link user-avatar" id="user-settings">
                 ${until(
                     me().then((u) => {
                         return html`<img