Proposed transactions pagination?

**Is your feature request related to a problem? Please describe.**

There are hundreds of proposals in the `committee-account` now. It makes the page very slow to load.
https://wallet.bitshares.org/#/account/committee-account/

**Describe the solution you'd like**
Pagination?

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
[2022-01-22 bitCNY blackswan: issues and solutions about individual settlements](https://bitsharestalk.org/index.php?topic=33637.msg347872#msg347872)

Start at the wallet account page linked in the issue and trace how the committee-account proposals and transactions are loaded and rendered. Check the relevant frontend tests or add coverage if none is mentioned. Done means the page handles hundreds of proposals through pagination and no longer suffers from the reported slow initial load.

Written by the indexing model from the issue text.