Version 0.5.5.30

Umlaut-aware table filtering and duplicate detection

Normalizes German umlauts in all generic browser-side table filters.
Treats ä/ae, ö/oe, ü/ue, and ß/ss as equivalent during filtering.
Applies the same normalization to duplicate detection while preserving the existing case-sensitivity option.
Applies the same behavior to the standalone software inventory filter.
Applies equivalent normalization to the server-side recent-job filters so historical searches behave like browser-side tables.
Keeps original values, display text, sorting, and stored data unchanged; normalization is used only for comparisons.