Chnage to one method to set MessageWidget text passing type as
parameter.
Only messages with questions requiring user input reamin using
MessageBox dialog.
Use signal/slots to set message in MessageWidget and hide message,
signal/slots only used when required.Maybe need to change all calls to
signals/slots in the future.
* Moved search bar to toolbar and consolidated search options into dropdown list
* Updated GUI tests to be atomic and rewrote search tests
* Searches are saved between databases
* Search is cleared when all databases are closed
* Implemented global search shortcut (CTRL+F) and a notification bar when in search mode
