E-ink partial refresh limitation removed for free text screen (#6201)

src/graphics/EInkDynamicDisplay.cpp

@@ -324,6 +324,14 @@ void EInkDynamicDisplay::checkConsecutiveFastRefreshes()
     if (refresh != UNSPECIFIED)
         return;
 
+    // Bypass limit if UNLIMITED_FAST mode is active
+    if (frameFlags & UNLIMITED_FAST) {
+        refresh = FAST;
+        reason = NO_OBJECTIONS;
+        LOG_DEBUG("refresh=FAST, reason=UNLIMITED_FAST_MODE_ACTIVE, frameFlags=0x%x", frameFlags);
+        return;
+    }
+    
     // If too many FAST refreshes consecutively - force a FULL refresh
     if (fastRefreshCount >= EINK_LIMIT_FASTREFRESH) {
         refresh = FULL;