Bump minimum target to es2015

Now that we no longer support IE we can raise the minimum ES target a
bit. Changing to es2015 shaves off ~17% from the main bundle size, also
it prevents generators from being transpiled into regular functions etc.
so I would guess it has the potential to give some general performance
improvements too.

For fun I also tried to raise it to es2022, this gave a slightly bigger
bundle than es2015 so I think es2015 could be an ok target unless we
need something newer for some reason.

addons/xterm-addon-attach/src/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"

addons/xterm-addon-attach/test/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],

addons/xterm-addon-canvas/src/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es6"

addons/xterm-addon-fit/src/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"

addons/xterm-addon-fit/test/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],

addons/xterm-addon-search/src/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es6",

addons/xterm-addon-search/test/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es6",
     ],

addons/xterm-addon-serialize/src/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"

addons/xterm-addon-serialize/test/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],

addons/xterm-addon-web-links/src/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"

addons/xterm-addon-web-links/test/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],

addons/xterm-addon-webgl/src/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es6"

addons/xterm-addon-webgl/test/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es6",
     ],

src/tsconfig-base.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
-    "target": "es5",
-    "lib": [ "es5" ],
+    "module": "commonjs",
+    "target": "es2015",
     "rootDir": ".",
 
     "sourceMap": true,