Implement Type-To-Search
Feature summary
Type-to-search is a common and useful pattern in GNOME core apps, where instead of manually navigating to search via button or shortcut, the user can just begin typing and search will start as long as no entry is focused. Geary currently doesn't have this.
How would you like it to work?
The most useful way for this to be done is for type-to-search to be used in the list of conversations on the left. It may also be useful for finding information within a conversation, but I'm not sure how to factor this feature in for two seperate search functions.
Relevant links, screenshots, etc
This pattern is recommended in the HIG: