Add configurable More tab for white-label apps via OBAKitConfig.MoreTab

[diveshpatil9104]

Summary

Adds white-label customization for the More/Settings tab via OBAKitConfig.MoreTab in project.yml, addressing #666 and #614.

Agencies can now configure:

• Custom header support text (replaces "made by volunteers")
• Show/hide the Help Out section entirely
• Override Translate and Develop URLs (or hide them)
• Add custom resource links (website, phone, etc.)

Also fixes pre-existing issues:

• 8 closures missing [weak self] (retain cycle risk)
• Force-unwrapped URLs in Help Out section
• Hardcoded "Donate to OneBusAway" replaced with Bundle.main.appName

Changes

File	What
OBAKitCore/Models/MoreTab/MoreTabConfiguration.swift	New config model parsed from Info.plist
OBAKitCore/Extensions/FoundationExtensions.swift	Bundle extension for moreTabConfiguration
OBAKit/Settings/MoreViewController.swift	Config-aware sections, custom links, [weak self] fixes
OBAKit/Settings/MoreHeaderController.swift	Configurable header support text
Apps/OneBusAway/project.yml	Explicit defaults (no visible change)
Apps/KiedyBus/project.yml	Custom header, hidden Help Out, goEuropa link
OBAKitTests/Modeling/MoreTabConfigurationTests.swift	10 unit tests

Example Config (KiedyBus)

MoreTab:
  HeaderSupportText: "Powered by goEuropa"
  ShowHelpOutSection: false
  CustomLinks:
    - Title: "goEuropa Website"
      URL: "https://www.goeuropa.eu"

Design Decisions

• Follows existing donationsConfig pattern — no new architecture, just extends OBAKitConfig
• Backwards compatible — no config = current behavior unchanged
• No force unwraps — failable init + compactMap for malformed links