v5.48.8 Contributor PRs, Transactions, Etc

API

• Fix: Use MongoDB transactions when joining Challenges (@SYN-tactic)
• Fix: Use MongoDB transactions when adding/removing members from Parties and Group Plans (@SabreCat)
• Docs: Various minor corrections and cleanup in apidoc (@asmfreak, @harininr)
• Test: Add coverage for loginRes util (@thgomes)
• Test: Add some coverage on taskManager (@drob)
• Chore: Locale files updated (@weblate contributors)

Client

• Feat: Design refresh on Gem purchase modal (@SabreCat)
• Fix: Maintain accurate sort order when dragging and dropping tasks with some hidden (@luanmuniz)
• Fix: Don't TypeError when attempting to autocomplete during session where user has just accepted Community Guidelines for chat (@rafJagCode)
• Perf: Use native input elements instead of bootstrap-vue form plugins (@phillipthelen)