Fix Selected Tags Not Restored on MainPage After Navigation #686
      
        
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Issue Detail
Selected tags are not restored on MainPage after returning from ProjectDetailPage.
Root Cause
After the changes introduced in PR-611, when a tag was initially selected, navigating to ProjectDetailPage caused it to be deleted in the ToggleTag method through the SelectionChanged logic. This incorrect logic resulted in the selected tags being lost on the MainPage.
Description of Change
Updated SelectionChanged command logic that compares the current selection with the previous one, updates the IsSelected property for newly selected or deselected tags, and saves the changes to keep the selection state consistent across navigation.
Breaking changes: https://github.com/dotnet/maui-samples/pull/611/files#diff-cbae54bfccffc3323ca041b37c3e9be2c5515d8aa51ced752b277d5744eb3591
Break PR: #611
Screenshots
BeforeFix.mov
AfterFix.mov