Account history only requests first 100 items

**Describe the bug**
Account history (activity) page only tries to get the first 100 items of history, regardless of server capacity.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to "Activity" tab of dashboard
2. The page only loads 100 items
3. Clicking on the arrow at the bottom doesn't trigger further loading action

**Expected behavior**
UI should try to load more history.

**Desktop (please complete the following information):**
N/A

**Smartphone (please complete the following information):**
N/A

**Additional context**
Related code:
https://github.com/bitshares/bitshares-ui/blob/ad40a31fd4fc042f25445f0d71b8cbdf8c89ee84/app/components/Account/RecentTransactions.jsx#L174-L183
https://github.com/bitshares/bitshares-ui/blob/ad40a31fd4fc042f25445f0d71b8cbdf8c89ee84/app/components/Account/RecentTransactions.jsx#L241-L247

Related issue:
#1349 was also related to only loading first 100 items, but the processing logic may be different.

Start in app/components/Account/RecentTransactions.jsx at lines 174-183 and 241-247, then reproduce the Activity tab behavior described in the issue. Compare the related processing in issue #1349. Done means the bottom arrow triggers loading beyond the first 100 history items.

Written by the indexing model from the issue text.