Add class to page content to unify top margin (#13766)

* Add class to page content to unify top margin

Previously pages would individually set this margin but some didn't so
content would stick to the header without any space. Resolve this by
adding a new class that is added on all pages. The only place where we
remove this margin again is on the pages with menu or wrapper in the
header.

* fix admin notices

* fix team pages

* fix loading segment on gitgraph for arc-green

* fix last missing case

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

templates/repo/settings/branches.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings edit">
+<div class="page-content repository settings edit">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/collaboration.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings collaboration">
+<div class="page-content repository settings collaboration">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/deploy_keys.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings">
+<div class="page-content repository settings">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/githook_edit.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings edit githook">
+<div class="page-content repository settings edit githook">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/githooks.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings githooks">
+<div class="page-content repository settings githooks">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/lfs.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings lfs">
+<div class="page-content repository settings lfs">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/lfs_file.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings lfs">
+<div class="page-content repository settings lfs">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container repository file list">

templates/repo/settings/lfs_file_find.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings lfs">
+<div class="page-content repository settings lfs">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container repository file list">

templates/repo/settings/lfs_locks.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings lfs">
+<div class="page-content repository settings lfs">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container repository file list">

templates/repo/settings/lfs_pointers.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings lfs">
+<div class="page-content repository settings lfs">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/options.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings options">
+<div class="page-content repository settings options">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/protected_branch.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings branches">
+<div class="page-content repository settings branches">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/webhook/base.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings webhooks">
+<div class="page-content repository settings webhooks">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">

templates/repo/settings/webhook/new.tmpl

@@ -1,5 +1,5 @@
 {{template "base/head" .}}
-<div class="repository settings new webhook">
+<div class="page-content repository settings new webhook">
 	{{template "repo/header" .}}
 	{{template "repo/settings/navbar" .}}
 	<div class="ui container">