[fix] Fix locale image flag

[enh] Allow to see message of secondary wallets
[fix] Fix crypto error for use of js-nacl
[fix] Wot identity: Adapt hero header when QRcode is zoom

[fix] Tablet: fix popup layout, when keyboard open in landscape mode - fix #829
[fix] Tablet: add missing padding (list result, etc.)
[fix] Popover: fix freeze after open a popover
[fix] Transfer modal: open then close modal can freeze the app
[fix] Grapĥ: use independant legend option (e.g. scale on a graph are no more linked)
[fix] Fix theme color, in meta tags and manifest.json
[enh] Auto enable fullscreen on small screen, and add a button to toggle

[fix] Wallets: do not display balance if wallet item not loaded

[fix] Wallets: should not need to auth, when encryption disabled

[fix] Avoid to re-add an existing wallet. Fix children wallet id generation (make sure id are unique)

[enh] Wallet list: add a icon if wallet is locked (not auth)