Issue #3436129: Fix drawer popovers for RTL

Without this fix, the popovers come from the wrong direction in RTL languages, and are hence hidden.

Closes #3436129

added 5 commits

• f0dae23e...c91faa15 - 4 commits from branch project:1.x
• e8fff067 - Merge branch '1.x' into 3436129-rtl-drawer

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added 3 commits

• fa92344e - Fix RTL chevron direction
• cbcfa0f2 - Fix RTL popover shadow position
• 6fc2f39b - Correct RTL offset math

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added 9 commits

• 6fc2f39b...a140fe51 - 4 commits from branch project:1.x
• cce34388 - Fix drawer popovers for RTL
• 3a57787f - Fix RTL chevron direction
• c3e1221c - Fix RTL popover shadow position
• 800ae162 - Correct RTL offset math
• 79366635 - Fix RTL submenu chevron direction

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started a merge train

merged