🟢 P2 Feat: Improve pool details

[0xkorin]

Upon clicking the header, a detailed view of the pool is shown. This table can be more informative by adding the following data:

• Current target weight (%)
• Current beacon chain ETH equivalent value
• Current bands (+/- %)
• Distance from target weight (+/- % point)
• Weight ramps (if any)
• 30d APR (query provider.rate(addr) now and 30 days ago and compare)

[Major]

- Amount in pool
asset.balanceOf(pool)
pool.virtual_balance(i) / pool.vb_prod_sum()[1] (=X)

- Current beacon chain ETH equivalent value
pool.virtual_balance(i)

- Current target weight (%)
pool.weight(i)[0] (=Y)

- Current bands (+/- %)
pool.weight(i)[2] and pool.weight(i)[3]

- Distance from target weight (+/- % point)
compare X with Y

- Weight ramps (if any)
pool.weight(i)[1] is new target weight after ramp

- 30d APR
query provider.rate(addr) now and 30 days ago and compare