refactor: introduce PageHeader component (#6629)

* refactor: introduce PageHeader component

* feat: split up according to component structure guide

* fix: lint

* fix: label inconsistencies

* feat: refactor PageHeader (again)

* refactor: old impls

* fix: changes

* fix: rescan

* fix: prepr

* fix: dedupe

* fix: rev

* fix: lint

* fix: lint

---------

Co-authored-by: Prospector <6166773+Prospector@users.noreply.github.com>

apps/frontend/src/locales/de-CH/index.json

@@ -3068,9 +3068,6 @@
   "profile.label.collection": {
     "message": "Kollektion"
   },
-  "profile.label.downloads": {
-    "message": "{count} {countPlural, plural, one {Download} other {Downloads}}"
-  },
   "profile.label.joined": {
     "message": "Beigetreten"
   },
@@ -3089,9 +3086,6 @@
   "profile.label.organizations": {
     "message": "Organisationen"
   },
-  "profile.label.projects": {
-    "message": "{count} {countPlural, plural, one {Projekt} other {Projekte}}"
-  },
   "profile.label.saving": {
     "message": "Speichert..."
   },
@@ -3656,12 +3650,6 @@
   "project.settings.visit-dashboard": {
     "message": "Projekt-Dashboard besuchen"
   },
-  "project.stats.downloads-label": {
-    "message": "{count, plural, one {Download} other {Downloads}}"
-  },
-  "project.stats.followers-label": {
-    "message": "{count, plural, one {Follower} other {Follower}}"
-  },
   "project.status.archived.message": {
     "message": "{title} wurde archiviert. {title} wird keine weiteren Updates erhalten, es sei denn, der Autor entscheided sich, das Projekt zu Dearchivieren."
   },