fix: remove stray space before suffix in contact display name

[MiMoHo]

Type of change(s)

• Bug fix

What changed and why

Contact.getNameToDisplay() built the display name as listOfNotNull(prefix, firstPart, "$lastPart$suffixComma").filter { it.isNotBlank() }.joinToString(" "). The .filter { isNotBlank() } already fixed the double space from an empty middle part (e.g. prefix + surname only), but when the last name is empty and a suffix is present, the third element becomes ", <suffix>" — which is not blank, so it survives the filter and joinToString(" ") prepends a stray space, e.g. John , Jr / Smith , Jr.

Fix: make lastPart its own filterable element and append the suffix after the join, so an empty last name is dropped and the suffix comma is never preceded by a stray space.

This lives in commons because getNameToDisplay() is shared; it fixes the display name in Fossify Contacts and Phone (contact rows, details header, shortcuts, letter avatars).

Tests performed

Verified the pure getNameToDisplay() string logic against the reported and adjacent cases (before → after):

• John + suffix Jr: John , Jr → John, Jr
• start-with-surname Smith + suffix Jr: Smith , Jr → Smith, Jr
• prefix Dr + surname Smith: Dr Smith (unchanged)
• full Dr John Smith Jr: Dr John Smith, Jr (unchanged)

./gradlew :commons:detekt :commons:lintRelease :commons:assembleRelease all pass locally. (commons has no unit-test source set, so this is a static/logic verification.)

Related issue(s)

• Fixes Wrong spacing between prefix and last name Contacts#157 (the fix lives here in commons; the app issue can be closed once commons is bumped)

Checklist

• I read the contribution guidelines.
• I manually verified the affected logic.
• I have self-reviewed my pull request.
• I understand every change in this pull request.

---

_{Coded with Opus 4.8 ultracode.}