[FIX] web: restore btn-link variations and badge style

+ printing improvements

Some style was lost for mysterious reasons during the less2scss
convertion.

addons/web/static/src/scss/utils.scss

@@ -302,7 +302,7 @@
 
     &, &:hover, &:focus, &:active, &.active {
         border-color: transparent;
-        background-color: transparent
+        background-color: transparent;
     }
 
     &.text-muted, .text-muted {

addons/web/static/src/scss/webclient.scss

@@ -136,3 +136,38 @@ div.o_boolean_toggle {
     display: flex;
     align-items: center;
 }
+
+//== Badges
+.badge {
+    margin: 1px 2px 1px 0;
+    padding-top: 0;
+    padding-bottom: 0;
+}
+
+// Btn-link variations
+.btn-link {
+    font-weight: $btn-font-weight;
+
+    &.btn-default {
+        @include o-btn-link-variant($text-color, $headings-color);
+    }
+    &.btn-success, &.text-success {
+        @include o-btn-link-variant($text-color, $brand-success);
+    }
+    &.btn-warning, &.text-warning {
+        @include o-btn-link-variant($text-color, $brand-warning);
+    }
+    &.btn-danger, &.text-danger {
+        @include o-btn-link-variant($text-color, $brand-danger);
+    }
+    &.btn-info, &.text-info {
+        @include o-btn-link-variant($text-color, darken($brand-info, 20%));
+    }
+}
+
+//== Printing improvements
+@media print {
+    .table-responsive {
+        overflow-x: initial;
+    }
+}