Remove unnecessary check for files to be linted and combine ts & tsx lint staged command (#6145)

Author: damian

package.json

@@ -32,12 +32,8 @@
       "standard --fix",
       "git add"
     ],
-    "*.ts": [
-      "tslint -c tslint.json 'packages/**/*.ts' --fix",
-      "git add"
-    ],
-    "*.tsx": [
-      "tslint -c tslint.json 'packages/**/*.ts' --fix",
+    "*.{ts,tsx}": [
+      "tslint -c tslint.json --fix",
       "git add"
     ],
     "packages/**/bin/*": [