Rename .eslintrc.js to canonical eslint.config.js

This name is assumed by eslint rules provided by bazlets.

Change-Id: Idd61fd17c25e2ef85ee547e9be4041591a24064c

web/eslint.config.js

diff --git a/web/.eslintrc.js b/web/eslint.config.js
similarity index 100%
rename from web/.eslintrc.js
rename to web/eslint.config.js