[Bugs] #4892 Sugar NORM: clear journal search with escape key

[Sugar Labs Bugs]

#4892: clear journal search with escape key
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       Reporter:  quozl        |       Owner:
           Type:  enhancement  |      Status:  new
       Priority:  Normal       |   Milestone:  Unspecified
      Component:  Sugar        |     Version:  Unspecified
       Severity:  Minor        |    Keywords:
Distribution/OS:  Unspecified  |  Bug Status:  New
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 search entry box is cleared with escape key in
 * neighbourhood view,
 * friends view, and;
 * home view (list and circle),

 but not in journal.

 when a journal entry is expanded, the escape key returns to the main
 journal view.  (_key_press_event_cb in journalactivity.py)

 please also clear the search entry.  ;-)

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Ticket URL: <https://bugs.sugarlabs.org/ticket/4892>
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