Convert to represent dates instead of numbers

- Add HistDate class
- Adapt TimeLine and BaseLine to work with HistDates
- For own-size-watching components, add onMounted() hook to run before
  ResizeObserver is set up

1 files changed, 1 insertions, 0 deletions

diff --git a/.eslintrc.js b/.eslintrc.js
index abbda84..167024a 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -22,6 +22,7 @@ module.exports = {
     ],
     "rules": {
         "@typescript-eslint/no-non-null-assertion": "off",
+        "@typescript-eslint/no-this-alias": "off",
         "no-constant-condition": "off",
     }
 }