Add setting to enable status bar display options (#111)

Add setting toggle that allows status bar display options in EpubReader.

Supported options would be as follows: 

- FULL: display as is today
- PROGRESS: display progress bar only
- BATTERY: display battery only
- NONE: hide status bar

---------

Co-authored-by: Dave Allie <dave@daveallie.com>

src/activities/settings/SettingsActivity.cpp

@@ -9,10 +9,11 @@
 
 // Define the static settings list
 namespace {
-constexpr int settingsCount = 4;
+constexpr int settingsCount = 5;
 const SettingInfo settingsList[settingsCount] = {
     // Should match with SLEEP_SCREEN_MODE
     {"Sleep Screen", SettingType::ENUM, &CrossPointSettings::sleepScreen, {"Dark", "Light", "Custom", "Cover"}},
+    {"Status Bar", SettingType::ENUM, &CrossPointSettings::statusBar, {"None", "No Progress", "Full"}},
     {"Extra Paragraph Spacing", SettingType::TOGGLE, &CrossPointSettings::extraParagraphSpacing, {}},
     {"Short Power Button Click", SettingType::TOGGLE, &CrossPointSettings::shortPwrBtn, {}},
     {"Check for updates", SettingType::ACTION, nullptr, {}},