refactor(tooltip): remove side before and after slide classes

[elite-benni]

side of before and after is translated to left and right accordingly to direction. Nothing to do here, because it already works as intended with left and right.

PR Checklist

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• The commit message follows our
  guidelines: https://github.com/goetzrobin/spartan/blob/main/CONTRIBUTING.md#-commit-message-guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

Which package are you modifying?

• accordion
• alert
• alert-dialog
• aspect-ratio
• avatar
• badge
• button
• calendar
• card
• checkbox
• collapsible
• combobox
• command
• context-menu
• data-table
• date-picker
• dialog
• dropdown-menu
• hover-card
• input
• label
• menubar
• navigation-menu
• popover
• progress
• radio-group
• scroll-area
• select
• separator
• sheet
• skeleton
• slider
• switch
• table
• tabs
• textarea
• toast
• toggle
• tooltip
• typography

What is the current behavior?

A Todo comment is in the source to fix rtl direction animation slide in of the tooltip

What is the new behavior?

The Todo is removed, because it is nothing to do.
Also the data-[side=after] and data-[side=before] are removed, as they are translated to left and right.

Does this PR introduce a breaking change?

• Yes
• No

Other information