night.css: fix link hover color and increase footer buttons opacity

themes/night.css

@@ -1861,6 +1861,9 @@ body.flat.ttrss_main.ttrss_prefs div.prefHelp {
 body.flat.ttrss_main {
   color: #cccccc;
 }
+body.flat.ttrss_main a:hover {
+  color: #58adda;
+}
 body.flat.ttrss_main #main,
 body.flat.ttrss_main #overlay {
   color: #cccccc;
@@ -1952,8 +1955,8 @@ body.flat.ttrss_main #headlines-frame .cdm .footer {
   border-color: #222222;
   color: #cccccc;
 }
-body.flat.ttrss_main #headlines-frame i.material-icons,
-body.flat.ttrss_main #headlines-frame .dijitCheckBox {
+body.flat.ttrss_main #headlines-frame .left i.material-icons,
+body.flat.ttrss_main #headlines-frame .left .dijitCheckBox {
   opacity: 0.7;
 }
 body.flat.ttrss_main #content-insert .post .header {

themes/night.less

@@ -28,6 +28,10 @@ body.flat.ttrss_main.ttrss_prefs {
 body.flat.ttrss_main {
 	color : @fg-main;
 
+	a:hover {
+		color : lighten(@color-link, 20%);
+	}
+
 	#main, #overlay {
 		color : @fg-main;
 		background: @bg-main;
@@ -137,9 +141,11 @@ body.flat.ttrss_main {
 			color : @fg-main;
 		}
 
-		i.material-icons,
-		.dijitCheckBox {
-			opacity : 0.7;
+		.left {
+			i.material-icons,
+			.dijitCheckBox {
+				opacity: 0.7;
+			}
 		}
 
 	}