Merge b5922b91b7 into d403044f76

## Rationale 

I have 2 wifi access points with almost identical names, just one has
`_EXT` at the end of it. With the current display limit of 13 characters
before adding ellipsis, I can't tell which is which.

Before device screenshot with masked SSIDs:
<img
src="https://github.com/user-attachments/assets/3c5cbbaa-b2f6-412f-b5a8-6278963bd0f2"
width="300">


## Summary

Adjusted displayed length from 13 characters to 30 in the Wifi selection
screen - I've left some space for potential proportional font changes in
the future

After image with masked SSIDs:
<img
src="https://github.com/user-attachments/assets/c5f0712b-bbd3-4eec-9820-4693fae90c9f"
width="300">

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**< NO >**_

src/activities/network/WifiSelectionActivity.cpp

@@ -546,8 +546,8 @@ void WifiSelectionActivity::renderNetworkList() const {
 
       // Draw network name (truncate if too long)
       std::string displayName = network.ssid;
-      if (displayName.length() > 16) {
+      if (displayName.length() > 33) {
-        displayName.replace(13, displayName.length() - 13, "...");
+        displayName.replace(30, displayName.length() - 30, "...");
       }
       renderer.drawText(UI_10_FONT_ID, 20, networkY, displayName.c_str());
 

src/activities/util/KeyboardEntryActivity.cpp

@@ -13,6 +13,9 @@ const char* const KeyboardEntryActivity::keyboard[NUM_ROWS] = {
 const char* const KeyboardEntryActivity::keyboardShift[NUM_ROWS] = {"~!@#$%^&*()_+", "QWERTYUIOP{}|", "ASDFGHJKL:\"",
                                                                     "ZXCVBNM<>?", "SPECIAL ROW"};
 
+// Shift state strings
+const char* const KeyboardEntryActivity::shiftString[3] = {"shift", "SHIFT", "LOCK"};
+
 void KeyboardEntryActivity::taskTrampoline(void* param) {
   auto* self = static_cast<KeyboardEntryActivity*>(param);
   self->displayTaskLoop();
@@ -80,7 +83,7 @@ int KeyboardEntryActivity::getRowLength(const int row) const {
 }
 
 char KeyboardEntryActivity::getSelectedChar() const {
-  const char* const* layout = shiftActive ? keyboardShift : keyboard;
+  const char* const* layout = shiftState ? keyboardShift : keyboard;
 
   if (selectedRow < 0 || selectedRow >= NUM_ROWS) return '\0';
   if (selectedCol < 0 || selectedCol >= getRowLength(selectedRow)) return '\0';
@@ -92,8 +95,8 @@ void KeyboardEntryActivity::handleKeyPress() {
   // Handle special row (bottom row with shift, space, backspace, done)
   if (selectedRow == SPECIAL_ROW) {
     if (selectedCol >= SHIFT_COL && selectedCol < SPACE_COL) {
-      // Shift toggle
+      // Shift toggle (0 = lower case, 1 = upper case, 2 = shift lock)
-      shiftActive = !shiftActive;
+      shiftState = (shiftState + 1) % 3;
       return;
     }
 
@@ -130,9 +133,9 @@ void KeyboardEntryActivity::handleKeyPress() {
 
   if (maxLength == 0 || text.length() < maxLength) {
     text += c;
-    // Auto-disable shift after typing a letter
+    // Auto-disable shift after typing a character in non-lock mode
-    if (shiftActive && ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'))) {
+    if (shiftState == 1) {
-      shiftActive = false;
+      shiftState = 0;
     }
   }
 }
@@ -297,7 +300,7 @@ void KeyboardEntryActivity::render() const {
   constexpr int keyHeight = 18;
   constexpr int keySpacing = 3;
 
-  const char* const* layout = shiftActive ? keyboardShift : keyboard;
+  const char* const* layout = shiftState ? keyboardShift : keyboard;
 
   // Calculate left margin to center the longest row (13 keys)
   constexpr int maxRowWidth = KEYS_PER_ROW * (keyWidth + keySpacing);
@@ -318,7 +321,7 @@ void KeyboardEntryActivity::render() const {
 
       // SHIFT key (logical col 0, spans 2 key widths)
       const bool shiftSelected = (selectedRow == 4 && selectedCol >= SHIFT_COL && selectedCol < SPACE_COL);
-      renderItemWithSelector(currentX + 2, rowY, shiftActive ? "SHIFT" : "shift", shiftSelected);
+      renderItemWithSelector(currentX + 2, rowY, shiftString[shiftState], shiftSelected);
       currentX += 2 * (keyWidth + keySpacing);
 
       // Space bar (logical cols 2-6, spans 5 key widths)

src/activities/util/KeyboardEntryActivity.h

@@ -70,7 +70,7 @@ class KeyboardEntryActivity : public Activity {
   // Keyboard state
   int selectedRow = 0;
   int selectedCol = 0;
-  bool shiftActive = false;
+  int shiftState = 0;  // 0 = lower case, 1 = upper case, 2 = shift lock)
 
   // Callbacks
   OnCompleteCallback onComplete;
@@ -81,6 +81,7 @@ class KeyboardEntryActivity : public Activity {
   static constexpr int KEYS_PER_ROW = 13;  // Max keys per row (rows 0 and 1 have 13 keys)
   static const char* const keyboard[NUM_ROWS];
   static const char* const keyboardShift[NUM_ROWS];
+  static const char* const shiftString[3];
 
   // Special key positions (bottom row)
   static constexpr int SPECIAL_ROW = 4;