Remove sticky feed aside. Work on an extension.

See https://github.com/FreshRSS/FreshRSS/issues/697

p/themes/BlueLagoon/BlueLagoon.css

@@ -622,8 +622,6 @@ a.btn {
 	text-align: center;
 }
 .aside.aside_feed .tree {
-	position: sticky;
-	top: 0;
 	margin: 10px 0 50px;
 }
 
@@ -1140,9 +1138,6 @@ opacity: 1;
 	.aside.aside_feed {
 		padding: 0;
 	}
-	.aside.aside_feed .tree {
-		position: static;
-	}
 
 	.nav_menu .btn {
 		margin: 5px 10px;

p/themes/Dark/dark.css

@@ -547,8 +547,6 @@ a.btn {
 	text-align: center;
 }
 .aside.aside_feed .tree {
-	position: sticky;
-	top: 0;
 	margin: 10px 0 50px;
 }
 
@@ -982,9 +980,6 @@ a.btn {
 	.aside.aside_feed {
 		padding: 0;
 	}
-	.aside.aside_feed .tree {
-		position: static;
-	}
 
 	.nav_menu .btn {
 		margin: 5px 10px;

p/themes/Flat/flat.css

@@ -553,8 +553,6 @@ a.btn {
 	border-radius: 0 10px 0 0;
 }
 .aside.aside_feed .tree {
-	position: sticky;
-	top: 0;
 	margin: 10px 0 50px;
 }
 
@@ -979,9 +977,6 @@ a.btn {
 	.aside.aside_feed {
 		padding: 0;
 	}
-	.aside.aside_feed .tree {
-		position: static;
-	}
 
 	.nav_menu .btn {
 		margin: 5px 10px;

p/themes/Origine/origine.css

@@ -587,8 +587,6 @@ a.btn {
 	background: #fff;
 }
 .aside.aside_feed .tree {
-	position: sticky;
-	top: 0;
 	margin: 10px 0 50px;
 }
 
@@ -1028,9 +1026,6 @@ a.btn {
 	.aside.aside_feed {
 		padding: 0;
 	}
-	.aside.aside_feed .tree {
-		position: static;
-	}
 
 	.nav_menu .btn {
 		margin: 5px 10px;

p/themes/Pafat/pafat.css

@@ -586,8 +586,6 @@ a.btn {
 	text-align: center;
 }
 .aside.aside_feed .tree {
-	position: sticky;
-	top: 5px;
 	margin: 10px 0 50px;
 }
 
@@ -1039,9 +1037,6 @@ a.btn {
 	.aside.aside_feed {
 		padding: 0;
 	}
-	.aside.aside_feed .tree {
-		position: static;
-	}
 
 	.nav_menu .btn {
 		margin: 5px 10px;

p/themes/Screwdriver/screwdriver.css

@@ -617,8 +617,6 @@ a.btn {
 	text-align: center;
 }
 .aside.aside_feed .tree {
-	position: sticky;
-	top: 0;
 	margin: 10px 0 50px;
 }
 
@@ -1139,9 +1137,6 @@ opacity: 1;
 	.aside.aside_feed {
 		padding: 0;
 	}
-	.aside.aside_feed .tree {
-		position: static;
-	}
 
 	.nav_menu .btn {
 		margin: 5px 10px;

p/themes/base-theme/base.css

@@ -427,8 +427,6 @@ a.btn {
 	text-align: center;
 }
 .aside.aside_feed .tree {
-	position: sticky;
-	top: 0;
 	margin: 10px 0 50px;
 }
 
@@ -777,9 +775,6 @@ a.btn {
 	.aside.aside_feed {
 		padding: 0;
 	}
-	.aside.aside_feed .tree {
-		position: static;
-	}
 
 	.nav_menu .btn {
 		margin: 5px 10px;