Fix wrong view name in replace action title by using `ViewWrapper` context

[thinkh]

Fixes #254

Developer Checklist (Definition of Done)

• [x] Descriptive title for this pull request provided (will be used for release notes later)
• [x] All acceptance criteria from the issue are met
• [x] Branch is up-to-date with the branch to be merged with, i.e., develop
• [x] Code is cleaned up and formatted
• [x] Code documentation written
• [ ] Unit tests written
• [x] Tested in Chrome
• [ ] Tested in Firefox
• [x] Build is successful
• [x] Summary of changes written
• [ ] Wiki documentation written
• [x] Assign at least one reviewer
• [x] Assign at least one assignee
• [x] Add type label (e.g., bug, enhancement) to this pull request
• [x] Add next version label (e.g., next-version: minor) to this PR following semver

Summary of changes

• The ref of the ViewWrapper is always set to the first view and never changes; otherwise CLUE cannot find the actual JS object anymore
• Instead we use the context which is updated with every replacement
• This change has only an effect on new sessions; since the title is hard-coded into the JSON it won't change for existing sessions

Screenshots