fix: Update terms of use header to match new copy

[frankvonhoven]

Description

Update copy on Terms of Use modal header to improve UX.

Screenshots/Recordings

Issue

fixes https://github.com/MetaMask/mobile-planning/issues/1205

Checklist

• There is a related GitHub issue
• Tests are included if applicable
• Any added code is fully documented

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[sethkfman]

LGTM

[codecov-commenter]

Codecov Report

Merging #7050 (9da15f3) into main (de1dc4a) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #7050   +/-   ##
=======================================
  Coverage   32.73%   32.73%           
=======================================
  Files         993      993           
  Lines       26614    26614           
  Branches     2083     2083           
=======================================
  Hits         8713     8713           
- Misses      17487    17489    +2     
+ Partials      414      412    -2     

see 1 file with indirect coverage changes

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

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