Show active transactions and token balances in the panel

[bbondy]

It'd be nice to see any active and recent transactions directly in the wallet panel. Users feel like they have to dig to get to them now in brave://wallet.

Users would also like to see asset balances easily in the panel.

[srirambv]

Android specific implementation #20765
iOS specific implementation brave/brave-ios#4912

Removing Android label from the issue as Android specific issue is logged

[srirambv]

Brave	1.35.98 Chromium: 98.0.4758.72 (Official Build) (64-bit)
Revision	d0fe1ec4df090cd3eb02b591228505e12ea476e9-refs/branch-heads/4758@{#935}
OS	☑️ Linux	☑️ Windows 11 Version Dev (Build 22523.1000)	☑️ macOS Version 12.0.1 (Build 21C52)
Verified steps from brave/brave-core#11655 Verified panel has a new Lightning boltbutton next to swap Verified clicking on the Lightning boltbutton shows the recent transactions Verified able to click individually listed transaction to see transaction details Verified able to submit Speedup or Cancel from the panel itself Verified transaction status's displays Value, Transaction fee, Date, Network and Status Verified Submitted, Confirmed transactions provide hash which links to the block explorer for that transaction
	19533-Linux.mp4	19533-Windows.mov	19533-macOS.mov