Fix/device adapter

[vanbasten17]

Description

• Initialize current device ASAP when DeviceAdapter is constructed to allow setting the font size in the correct way for iPhone devices. This is, when TextArea's fontSize is called in the very first time, return the expected font size or 'initial'.
• Give preference to navigator.userAgentData.platform over navigator.platform as it has been deprecated, leading currentDevice to be undefined ow.
• WebchatResizer onFocus method was called before being constructed. Placing this logic to be executed at the very end of JS event loop.
• Disabling a log (which is only for Botonic 1.0) to avoid potential customer complaints.

Context

Some things I have noticed after reviewing a pull request regarding scrollable contents.

Approach taken / Explain the design

To document / Usage example

Testing

The pull request...

• has unit tests
• has integration tests
• doesn't need tests because... [provide a description]

[github-actions]

Unit Test Results

  1 files  ±0    7 suites  ±0   3m 30s ⏱️ ±0s
32 tests ±0  32 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 82c41b5. ± Comparison against base commit 82c41b5.

♻️ This comment has been updated with latest results.