Improve property description hints for dialogs

server/src/wled_controller/static/locales/en.json

@@ -46,6 +46,7 @@
   "templates.description.label": "Description (optional):",
   "templates.description.placeholder": "Describe this template...",
   "templates.engine": "Capture Engine:",
+  "templates.engine.hint": "Select the screen capture technology to use",
   "templates.engine.select": "Select an engine...",
   "templates.engine.unavailable": "Unavailable",
   "templates.engine.unavailable.hint": "This engine is not available on your system",
@@ -215,10 +216,15 @@
   "streams.type.raw": "Screen Capture",
   "streams.type.processed": "Processed",
   "streams.display": "Display:",
+  "streams.display.hint": "Which screen to capture",
   "streams.capture_template": "Engine Template:",
+  "streams.capture_template.hint": "Engine template defining how the screen is captured",
   "streams.target_fps": "Target FPS:",
+  "streams.target_fps.hint": "Target frames per second for capture (10-90)",
   "streams.source": "Source Stream:",
+  "streams.source.hint": "The stream to apply processing filters to",
   "streams.pp_template": "Filter Template:",
+  "streams.pp_template.hint": "Filter template to apply to the source stream",
   "streams.description_label": "Description (optional):",
   "streams.description_placeholder": "Describe this stream...",
   "streams.created": "Stream created successfully",