Trim StobeServer web UI spacing

[RANGROO]

Summary

• standardize compact, inline page headers across the StobeServer settings UI
• reduce excess page, card, hub navigation, and embedded-frame spacing
• tighten the Prompts Manager layout while preserving responsive stacking
• preserve Stobe-specific player faction and server behavior

Visual proof

Prompts Manager before	Prompts Manager after

Configuration Hub before	Configuration Hub after

Responsive Prompts Manager:

Validation

• PHP syntax lint: 15 changed PHP files passed
• HTTP smoke test: all 15 changed PHP routes returned 200
• browser review: affected pages checked at 1280px desktop width
• responsive review: Prompts Manager checked in a 758px host with a 743px iframe viewport
• baseline comparison: representative Prompts and Configuration Hub pages captured before and after
• git diff --check passed

Scope and limits

• UI-only change; no database, API, dependency, or runtime behavior changes
• not deployed to a shared server and not tested in game