v2.4.0: Night dimming, aircraft watchlist, and nearest-airport lookup

src/i18n_en.h

@@ -56,6 +56,7 @@ static const char* const I18N_EN[] = {
     "Manage WiFi networks",
     "Location presets",
     "Screen timeout: ",
+    "Night dimming (10pm-6am): ",
     "Statistics",
     "Logbook files",
     "More settings >",
@@ -65,6 +66,8 @@ static const char* const I18N_EN[] = {
     "Flight logbook: ",
     "Hide ground vehicles: ",
     "Airline filter",
+    "Watchlist",
+    "Watchlist alert: ",
     "Backup settings",
     "Restore settings",
     "Backup saved.",
@@ -80,6 +83,16 @@ static const char* const I18N_EN[] = {
     "Add airline",
     "Add airline (ICAO code)",
 
+    "Watched aircraft",
+    "Get notified (blue LED) when any",
+    "of these aircraft appears.",
+    "Add aircraft",
+    "Add aircraft (callsign)",
+    "No aircraft watched yet.",
+    "How the watchlist works",
+    "Enter the exact callsign of a specific flight (e.g. DLH441) - not an airline code like the Airline Filter. Up to 5 aircraft can be tracked at once.",
+    "As soon as a watched aircraft appears anywhere on the radar, it gets a cyan ring and the LED blinks blue - great for spotting a specific flight, e.g. when someone you know is arriving.",
+
     "Location presets",
     "Auto (GPS/IP)",
     "Preset",
@@ -87,11 +100,13 @@ static const char* const I18N_EN[] = {
     "Add preset",
     "Latitude (e.g. 48.6833)",
     "Longitude (e.g. 9.8333)",
+    "Nearest airport: ",
 
     "How presets work",
     "Only ONE location is active at a time - either Auto or exactly one preset. Tap an entry to activate it.",
     "You can also enter the coordinates of any other place - e.g. Milan, New York or Tokyo - and see the live air traffic THERE, no matter where your device actually is!",
     "Also handy for more precision than automatic IP-based location, e.g. when the device stays in one fixed spot.",
+    "This screen also shows the nearest airport to whichever location is currently active - handy to see exactly where a foreign preset points to.",
 
     "Statistics",
     "Aircraft logged today",