Cleanup dashboard JS (#491)

* Cleanup dashboard JS

* Add vscode

* Save start_mark/end_mark

* Updates

* Updates

* Remove need for cv.nameable

It's a bit hacky but removes so much bloat from integrations

* Add enum helper

* Document APIs, and Improvements

* Fixes

* Fixes

* Update PULL_REQUEST_TEMPLATE.md

* Updates

* Updates

* Updates

esphome/core/helpers.cpp

@@ -88,7 +88,7 @@ std::string to_lowercase_underscore(std::string s) {
 std::string sanitize_string_whitelist(const std::string &s, const std::string &whitelist) {
   std::string out(s);
   out.erase(std::remove_if(out.begin(), out.end(),
-                           [&out, &whitelist](const char &c) { return whitelist.find(c) == std::string::npos; }),
+                           [&whitelist](const char &c) { return whitelist.find(c) == std::string::npos; }),
             out.end());
   return out;
 }