Do not wait for finalization

[gdethier]

• Wait for in-block instead of finalization.
• Prevents acknowledgment if no timestamp (i.e. not yet synced backend-side).
• Close is already safe (cannot close if acknowledgement not yet synced, check in the SDK).
• Fixes bug about estimating fees when not relevant (threw an error in LLO UI, potentially with no impact in production but visible with development mode).
• Do not wait for transaction after successful LGNT transfer (but show a message telling there is a delay before it shows up in history). The logic in the context can be removed later.

logion-network/logion-internal#1222

[benoitdevos]

Good job !