Cache already seen entries

[Subtixx]

Currently, the extension does not cache entries that have already been seen. This results in repeated processing of the same entries, which can lead to performance inefficiencies.

Steps to Reproduce

• Perform a search using the ulauncher extension.
• Observe the entries returned by the KDE baloo indexing service.
  Note that previously seen entries are processed again.

Expected Outcome

Previously seen entries should be cached to avoid reprocessing and improve performance.

Actual Outcome

Previously seen entries are not cached, leading to redundant processing.

Possible Solution

Implement a caching mechanism to store and reuse entries that have already been processed.