Fix keyboard shortcuts on Windows Chrome

[belcherj]

Fix

Fixes the ctrl + shift + j/k keyboard shortcut on Windows Chrome and Windows Electron.

Adds the same logic to other shortcuts to ensure bugs of the same sort don't pop up:

• ctrl + shift + t - open tag list
• ctrl + shift + n - open note list
• ctrl + t - move between tag editor and note editor

Test

1. In windows chrome
2. Click a note in the note list
3. Use ctrl + shift + j/k to navigate between notes
4. Use ctrl + shift + up/down arrow keys to navigate between notes
5. Use ctrl + shift + t to open close the tag list
6. In OSX Electron make Simplenote small so only note list or note is visible
7. Open a note
8. Use ctrl + shift + n to go back to note list
9. Open note
10. Use ctrl + t to move back and forth between tag editor and note editor

Note:
ctrl + shift + n and ctrl + t do not work in many places do to Chrome not allowing us to override the built in keyboard shortcuts. https://bugs.chromium.org/p/chromium/issues/detail?id=33056

Release

• Fixes ctrl + shift + j/k keyboard shortcut on Windows #1888

[dmsnell]

Very good changes. Let's test this in batch with a few more of your PRs that are getting merged today.