Full T-echo card support + Compact UI (#11342)

* T-echo card

* Update NRF52I2SOutput.cpp

* Update NRF52I2SOutput.h

* cleanup

* Update buzz.cpp

* use consistent runtime compact-panel check instead of mixing with compile-time macro

* Update NodeDB.cpp

* Update ExternalNotificationModule.cpp

* switched to Throttle::isWithinTimespanMs

* Update SharedUIDisplay.h

* trunk fix

* last cleanup

* ClockRenderer.cpp for OLED_COMPACT_UI and setup Unit C6L for new UI.

* Fixed regressions in standard OLED and TFT

---------

Co-authored-by: Jason P <applewiz@mac.com>

src/graphics/SharedUIDisplay.h

@@ -59,6 +59,18 @@ void drawCommonHeader(OLEDDisplay *display, int16_t x, int16_t y, const char *ti
 // Shared battery/time/mail header
 void drawCommonFooter(OLEDDisplay *display, int16_t x, int16_t y);
 
+// Inline so non-compact boards fold this to a constant false at every call site, cost-free.
+static inline bool isCompactPanel(OLEDDisplay *display)
+{
+#if defined(OLED_COMPACT_UI)
+    // Covers both known compact panels (72x40 and 64x48).
+    return display->getWidth() <= 80 && display->getHeight() <= 48;
+#else
+    (void)display;
+    return false;
+#endif
+}
+
 const int *getTextPositions(OLEDDisplay *display);
 
 bool isAllowedPunctuation(char c);