ui: update button style

fit with wireframes. Blue circles and white icons.
Add this changes in the Person View Controller as well.

Issue: #79400
Change-Id: I82fd0189da0ead41e87de91d4a8123a968d79fea
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7b08877..e6e3e1b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -131,7 +131,9 @@
    src/views/NSColor+RingTheme.mm
    src/views/NSColor+RingTheme.h
    src/views/ContextualTableCellView.mm
-   src/views/ContextualTableCellView.h)
+   src/views/ContextualTableCellView.h
+   src/views/IconButton.h
+   src/views/IconButton.mm)
 
 SET(ringclient_OTHERS
    src/main.mm
@@ -168,6 +170,7 @@
 
 SET(ring_ICONS
 ${CMAKE_CURRENT_SOURCE_DIR}/data/symbol_name.png
+${CMAKE_CURRENT_SOURCE_DIR}/data/background_tile.png
 ${CMAKE_CURRENT_SOURCE_DIR}/data/dark/ic_action_accept.png
 ${CMAKE_CURRENT_SOURCE_DIR}/data/dark/ic_action_call.png
 ${CMAKE_CURRENT_SOURCE_DIR}/data/dark/ic_action_cancel.png