feat: enable xterm.js webgl renderer

Author: GitSquared

package-lock.json

@@ -7,6 +7,7 @@ class Terminal {
             const {AttachAddon} = require("xterm-addon-attach");
             const {FitAddon} = require("xterm-addon-fit");
             const {LigaturesAddon} = require("xterm-addon-ligatures");
+            const {WebglAddon} = require("xterm-addon-webgl");
             this.Ipc = require("electron").ipcRenderer;
 
             this.port = opts.port || 3000;
@@ -137,6 +138,7 @@ class Terminal {
             let fitAddon = new FitAddon();
             this.term.loadAddon(fitAddon);
             this.term.open(document.getElementById(opts.parentId));
+            this.term.loadAddon(new WebglAddon());
             let ligaturesAddon = new LigaturesAddon();
             this.term.loadAddon(ligaturesAddon);
             this.term.attachCustomKeyEventHandler(e => {