chore: rename autofill target/folder to AutoFill

Also drops the stray empty AutoFillExtension/ directory left over from
an earlier abandoned attempt at creating this target, and cleans up
duplicate/stale scheme entries in xcschememanagement.plist.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WYqycDFsynHH9VnnK7LNSf

MyPass.xcodeproj/xcuserdata/kriss.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -4,7 +4,7 @@
 <dict>
 	<key>SchemeUserState</key>
 	<dict>
-		<key>AutoFillExtension.xcscheme_^#shared#^_</key>
+		<key>AutoFill.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
 			<integer>1</integer>
@@ -14,11 +14,6 @@
 			<key>orderHint</key>
 			<integer>0</integer>
 		</dict>
-		<key>autofill.xcscheme_^#shared#^_</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>1</integer>
-		</dict>
 	</dict>
 </dict>
 </plist>