Faster startup

[thewhaleking]

Sends the initial init_runtime to a task, so it's not immediately blocking when the class is initialized

Using btcli w balance --wallet-name alice --network test as a benchmark:

This PR	--	Before
4.6	Run 1	4.27
3.41	Run 2	3.86
3.4	Run 3	4.37
3.71	Run 4	3.92
3.5	Run 5	3.86
3.724	MEAN	4.056
3.5	MEDIAN	3.92

Speed improvement:

--	actual	pct
MEAN	0.332	8.19%
MEDIAN	0.42	10.71%

[thewhaleking]

Unsure if the broken tests are related. Do not merge yet.

[ibraheem-abe]

@thewhaleking Its because of the mismatch in mev-shield stuff in upstream vs btcli.

Once that get resolved we can get a good flow