fix(picker-column): correct RTL direction (#27460)

Issue number: resolves #21205 

---------

<!-- Please do not submit updates to dependencies unless it fixes an
issue. -->

<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->

## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

`picker-column` keeps using LTR display when using RTL.

LTR:
`Column 1   Column 2`

RTL:
`Column 1   Column 2`

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

`picker-column` correctly displays for RTL.

LTR:
`Column 1   Column 2`

RTL:
`Column 2   Column 1`

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

<!-- If this introduces a breaking change, please describe the impact
and migration path for existing applications below. -->


## Other information

<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->

This PR is already being tested through the `picker -> basic` and
`picker -> value` screenshots. Due to those tests, a new test is not
needed to verify the fix.

The current fix is only changing the `picker` and `picker-column`. The
`datetime` and `datetime-button` do not change, leaving the format up to
the users. It wouldn't change the functionality that was provided
through PR ionic-team/ionic-framework#17018.

---------

Co-authored-by: ionitron <hi@ionicframework.com>

core/src/components/picker/picker.scss

@@ -120,7 +120,6 @@
   margin-bottom: var(--ion-safe-area-bottom, 0);
 
   contain: strict;
-  direction: ltr;
   overflow: hidden;
 }