web: housekeeping, optimizations and small fixes (#12450)

* web/user: fix incorrect font in RAC endpoint popup

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix navbar button colour in light mode

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add about modal

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix sidebar overlapping page header

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix wizard hint alignment

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add loading state to about modal

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add version context

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* stub out init functions on loading interface

saves 4 HTTP requests on each full page load 🎉

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix z-index for panels

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* remove redundant api request

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

---------

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

web/src/admin/applications/ApplicationWizardHint.ts

@@ -44,7 +44,6 @@ export class AkApplicationWizardHint extends AKElement implements ShowHintContro
             PFLabel,
             css`
                 .pf-c-page__main-section {
-                    padding-top: 0;
                     padding-bottom: 0;
                 }
                 .ak-hint-text {