Refresh dependencies, drop node-sass

`npm audit` revealed some vulnerabilities:

```

scss-tokenizer  <=0.4.2
Severity: high
Regular expression denial of service in scss-tokenizer - https://github.com/advisories/GHSA-7mwh-4pqv-wmr8
fix available via `npm audit fix --force`
Will install node-sass@4.5.3, which is a breaking change
node_modules/scss-tokenizer
  sass-graph  >=2.2.0
  Depends on vulnerable versions of scss-tokenizer
  node_modules/sass-graph
    node-sass  >=4.6.0
    Depends on vulnerable versions of sass-graph
    node_modules/node-sass

3 high severity vulnerabilities

```

We don't need node-sass, and sass-loader is just as happy using
another sass implementation. The preferred one is dart-sass which
is simply called sass in npm.

In the process, I also did an `npm update` just for good measure.

bindata/static/css/xterm.css

@@ -36,6 +36,7 @@
  */
 
 .xterm {
+    cursor: text;
     position: relative;
     user-select: none;
     -ms-user-select: none;
@@ -124,10 +125,6 @@
     line-height: normal;
 }
 
-.xterm {
-    cursor: text;
-}
-
 .xterm.enable-mouse-events {
     /* When mouse events are enabled (eg. tmux), revert to the standard pointer cursor */
     cursor: default;
@@ -178,3 +175,16 @@
 	z-index: 6;
 	position: absolute;
 }
+
+.xterm-decoration-overview-ruler {
+    z-index: 7;
+    position: absolute;
+    top: 0;
+    right: 0;
+    pointer-events: none;
+}
+
+.xterm-decoration-top {
+    z-index: 2;
+    position: relative;
+}

bindata/static/js/gotty.js.LICENSE.txt

@@ -1,6 +1,6 @@
 /*!
-  * Bootstrap v5.1.3 (https://getbootstrap.com/)
+  * Bootstrap v5.2.0 (https://getbootstrap.com/)
-  * Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
+  * Copyright 2011-2022 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   */
 

bindata/static/js/gotty.licenses.txt

@@ -26,8 +26,8 @@ bootstrap
 MIT
 The MIT License (MIT)
 
-Copyright (c) 2011-2021 Twitter, Inc.
+Copyright (c) 2011-2022 Twitter, Inc.
-Copyright (c) 2011-2021 The Bootstrap Authors
+Copyright (c) 2011-2022 The Bootstrap Authors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

js/package.json

@@ -8,7 +8,7 @@
         "license-loader": "^0.5.0",
         "license-webpack-plugin": "^4.0.2",
         "purgecss": "^4.1.3",
-        "sass": "^1.50.0",
+        "sass": "^1.54.5",
         "sass-loader": "^12.6.0",
         "terser-webpack-plugin": "^5.3.1",
         "ts-loader": "^8.3.0",
@@ -21,7 +21,6 @@
         "bootstrap": "^5.1.3",
         "css-loader": "^5.2.6",
         "debounce": "^1.2.1",
-        "node-sass": "^7.0.1",
         "preact": "^10.7.1",
         "react-bootstrap": "^2.2.3",
         "style-loader": "^2.0.0",

js/src/bootstrap.scss

@@ -1,14 +1,12 @@
-/*!
+@import "mixins/banner";
- * Bootstrap v5.1.3 (https://getbootstrap.com/)
+@include bsBanner("");
- * Copyright 2011-2021 The Bootstrap Authors
+
- * Copyright 2011-2021 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
- */
 
 // scss-docs-start import-stack
 // Configuration
 @import "functions";
 @import "variables";
+@import "maps";
 @import "mixins";
 @import "utilities";