Issue number: Resolves#22176
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## What is the current behavior?
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Translucent popovers do not get blurred in Chromium
## What is the new behavior?
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this PR. -->
- Translucent popover gets blurred in Chromium
Note: existing screenshot tests nicely show the change in behavior.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
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and migration path for existing applications below. -->
## Other information
Because of the [existing, apparently
intentional](https://bugs.chromium.org/p/chromium/issues/detail?id=1148826)
behavior in Chromium browsers with `backdrop-filter` and animation, we
need to either animate the arrow and content instead of the wrapper or
apply the filter to a different element. Here, I've animated the arrow
and content instead of the wrapper.
The fix only needs to apply in `ios` mode. The translucent option is not
supported in `md` mode.
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screenshots of how the component looks before and after the change. -->
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Co-authored-by: ionitron <hi@ionicframework.com>
a59eefb6a3