ui: remove primary subkey info
ui: subkey view redesign
ui: show revocation and expiry status on info tab
ui: use primary icon color for certification status
Touch view only once
ui: make primary star icon slightly larger
ui: use textviews instead of bootstrap buttons in SignEncrypt
ui: apply purple theme (twi is best color)
ui: use textview buttons in decrypt verify dialogue
Merge pull request #612 from Valodim/purple-theme

ui: apply purple theme
Add color theme notice to README
Move logic classes for import into own sub-package
Always use section style instead of custom class
edit button with image
Some small style fixes
Clarify language
ui: purpelize fastscroll thumb
ui: purplize edge overscroll glow effect
ui: move revocation/expiry notes above tab slider
ui: slight edit icon cosmetics in keylist