CB/ui: Landingpage renovation (!35)

Fresh design for the landing/about page.
Includes responsive behavior for all display sizes.

CB/tmpl: UX/a11y of LandingPage, update social links (!43)

- new Mastodon location
- rel="noopener noreferrer" for social links
- improve usability

Designed-by: mray <[email protected]>
Co-authored-by: mray <[email protected]>
Co-authored-by: McTom234 <[email protected]>
Co-authored-by: 6543 <[email protected]>
Co-authored-by: Otto <[email protected]>
Co-authored-by: fnetX <[email protected]>
Reviewed-on: https://codeberg.org/Codeberg/gitea/pulls/35
Co-authored-by: McTom234 <[email protected]>
Co-authored-by: fsologureng <[email protected]>
Reviewed-on: https://codeberg.org/Codeberg/gitea/pulls/43
Co-authored-by: Felipe Leopoldo Sologuren Gutiérrez <[email protected]>
Co-committed-by: Felipe Leopoldo Sologuren Gutiérrez <[email protected]>
Co-committed-by: McTom234 <[email protected]>

CB/tmpl: Fix Mastodon link

CB/tmpl: Add `rel=me` to mastodon link

- This should allow to verify the link on mastodon instances.

Author: McTom234

public/img/codeberg-landingpage-intro-background-dark.jpg

@@ -12,6 +12,7 @@ import (
 	"code.gitea.io/gitea/models/db"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
+	activities_model "code.gitea.io/gitea/models/activities"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/log"
@@ -61,8 +62,15 @@ func Home(ctx *context.Context) {
 		return
 	}
 
+	// codeberg: show about page
+	About(ctx)
+}
+
+// codeberg specific about page
+func About(ctx *context.Context) {
 	ctx.Data["PageIsHome"] = true
 	ctx.Data["IsRepoIndexerEnabled"] = setting.Indexer.RepoIndexerEnabled
+	ctx.Data["Stats"] = activities_model.GetStatistic()
 	ctx.HTML(http.StatusOK, tplHome)
 }
 

public/img/codeberg-landingpage-intro-background.jpg

@@ -303,6 +303,7 @@ func RegisterRoutes(m *web.Route) {
 	// for health check
 	m.Get("/", Home)
 	m.Get("/sitemap.xml", ignExploreSignIn, HomeSitemap)
+	m.Get("/about", About) // codeberg
 	m.Group("/.well-known", func() {
 		m.Get("/openid-configuration", auth.OIDCWellKnown)
 		m.Group("", func() {