[Web] Minify css and js via PHP

[Web] Use PT Sans
[Web] Update some libs

data/web/css/site/mailbox.css

@@ -0,0 +1,55 @@
+table.footable>tbody>tr.footable-empty>td {
+  font-size:15px !important;
+  font-style:italic;
+}
+.pagination a {
+  text-decoration: none !important;
+}
+.panel panel-default {
+  overflow: visible !important;
+}
+.table-responsive {
+  overflow: auto !important;
+}
+@media screen and (max-width: 767px) {
+  .table-responsive {
+    overflow-x: scroll !important;
+  }
+}
+.btn-group {
+  width: max-content;
+}
+.footer-add-item {
+  display:block;
+  text-align: center;
+  font-style: italic;
+  padding: 10px;
+  background: #F5F5F5;
+}
+@media (min-width: 992px) {
+  .container {
+      width: 80%;
+  }
+}
+.mass-actions-mailbox {
+  user-select: none;
+  padding:10px 0 10px 10px;
+}
+.inputMissingAttr {
+  border-color: #FF4136;
+}
+.dns-found {
+  max-width: 300px;
+  word-break: break-all;
+}
+.dns-recommended {
+  max-width: 150px;
+  word-break: break-all;
+}
+.table-lines {
+  vertical-align: inherit;
+}
+#logText {
+  font-family:Consolas,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New, monospace;
+  font-size:smaller;
+}