Allow `while(true)` loops (#1495)

The eslint no-constant-condition rule disallows while(true) loops,
since the true is a constant condition. However, I find the allowed
alternative (`for (;;)`) less readable, so I am adding the sub-rule that
allows constant conditions for loops.

Test plan: A followon commit uses a while(true) loop, and, assuming this
patch is applied, it does not result in a lint error.

Co-authored-by: Robin van Boven <497556+Beanow@users.noreply.github.com>

.eslintrc.js

@@ -29,6 +29,7 @@ module.exports = {
         caughtErrorsIgnorePattern: "^_$|^_unused_",
       },
     ],
+    "no-constant-condition": ["warn", {checkLoops: false}],
     "no-use-before-define": ["off"],
     "no-useless-constructor": ["off"],
     "no-case-declarations": ["off"],