Fix .as-link appearance in dropdown

Related to https://github.com/marienfressinaud/FreshRSS/issues/633

p/themes/Dark/dark.css

@@ -340,7 +340,7 @@ a.btn {
 }
 .dropdown-menu > .item > span,
 .dropdown-menu > .item > .as-link {
-	padding: 0 25px;
+	padding: 0 22px;
 	line-height: 2em;
 }
 .dropdown-menu > .item:hover {

p/themes/Flat/flat.css

@@ -340,7 +340,7 @@ a.btn {
 }
 .dropdown-menu > .item > span,
 .dropdown-menu > .item > .as-link {
-	padding: 0 25px;
+	padding: 0 22px;
 	line-height: 2em;
 }
 .dropdown-menu > .item:hover {

p/themes/Origine/origine.css

@@ -366,7 +366,7 @@ a.btn {
 }
 .dropdown-menu > .item > span,
 .dropdown-menu > .item > .as-link {
-	padding: 0 25px;
+	padding: 0 22px;
 	line-height: 2em;
 }
 .dropdown-menu > .item:hover {

p/themes/Screwdriver/screwdriver.css

@@ -394,7 +394,7 @@ a.btn {
 }
 .dropdown-menu > .item > span,
 .dropdown-menu > .item > .as-link {
-	padding: 0 25px;
+	padding: 0 22px;
 	line-height: 2em;
 	color: #ccc;
 }

p/themes/base-theme/base.css

@@ -257,7 +257,7 @@ a.btn {
 }
 .dropdown-menu > .item > span,
 .dropdown-menu > .item > .as-link {
-	padding: 0 25px;
+	padding: 0 22px;
 	line-height: 2em;
 }
 .dropdown-menu > .item:hover {

p/themes/base-theme/template.css

@@ -96,6 +96,7 @@ button.as-link:active {
 	color: inherit;
 	cursor: pointer;
 	font-size: 1.1em;
+	text-align: left;
 }
 
 /*=== Tables */
@@ -199,8 +200,10 @@ a.btn {
 	display: block;
 }
 .dropdown-menu > .item > a,
+.dropdown-menu > .item > .as-link,
 .dropdown-menu > .item > span {
 	display: block;
+	min-width: 200px;
 }
 .dropdown-menu > .item[aria-checked="true"] > a:before {
 	content: '✓';