Description: On the desktop site, when I try to add an existing lowercase tag (e.g. "faith") to a memorization, the app automatically capitalizes it ("Faith") and creates a new tag instead of using the existing one. On mobile, I can create and use lowercase tags normally. This means I now have two separate tags "faith" and "Faith", even though they should be the same tag. Steps to Reproduce: Create a lowercase tag on mobile (e.g. "faith"). On desktop, open a memorization and try to add the same tag ("faith"). Notice that it’s auto-capitalized ("Faith") and saved as a new tag instead of reusing the existing one. Expected Behavior: The desktop site should recognize existing lowercase tags and reuse them instead of creating new uppercase tags. Actual Behavior: Desktop doesn't reuse existing lowercase tags and creates new uppercase tags. Impact: Creates duplicate tags that differ only by capitalization. Makes tag management and searching inconsistent between desktop and mobile. Environment: Platform: MacOS 12 Mobile platform: Android Browser: Chrome