fix: remove whitespace at bottom of web-view after keyboard dismiss

[MuckT]

Description

After merging #6217, there is a residual whitespace after dismissing the keyboard in web views; this PR removes that whitespace.

Android Before	Android After
Screen.Recording.2024-11-20.at.4.56.59.PM.mov	Screen.Recording.2024-11-20.at.4.56.27.PM.mov

Test plan

• Tested locally on iOS
• Tested locally on Android

Related issues

N/A

Backwards compatibility

Yes

Network scalability

N/A

[MuckT]

@jeanregisser is there a better way to handle this besides adding the KeyboardSpacer component in the web view?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.91%. Comparing base (24ede4b) to head (0f27cdf).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6253      +/-   ##
==========================================
- Coverage   88.92%   88.91%   -0.01%     
==========================================
  Files         737      737              
  Lines       31432    31433       +1     
  Branches     5530     5834     +304     
==========================================
- Hits        27952    27950       -2     
+ Misses       3436     3284     -152     
- Partials       44      199     +155     

Files with missing lines	Coverage Δ
src/webview/WebViewScreen.tsx	62.39% <100.00%> (+0.32%)	⬆️

... and 67 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 24ede4b...0f27cdf. Read the comment docs.

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles