feature: mock miniapp data

[SmritiRakuten]

Description

Describe the changes in this pull request.
Explain your rationale of technical decisions you made (unless discussed before).

Links

Add links to github/jira issues, design documents and other relevant resources (e.g. previous discussions, platform/tool documentation etc.)

Checklist

• I have completed all steps in the Contribution Checklist

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 29.55466% with 174 lines in your changes missing coverage. Please review.

Project coverage is 64.30%. Comparing base (b055bcb) to head (8f6504a).

Files with missing lines	Patch %	Lines
js-miniapp-sdk/src/mock-bridge.ts	28.57%	165 Missing ⚠️
js-miniapp-sdk/src/sdkbridge.ts	50.00%	3 Missing and 2 partials ⚠️
js-miniapp-sdk/src/miniapp.ts	33.33%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #309      +/-   ##
==========================================
- Coverage   72.51%   64.30%   -8.21%     
==========================================
  Files          36       37       +1     
  Lines        1055     1300     +245     
  Branches       69      100      +31     
==========================================
+ Hits          765      836      +71     
- Misses        262      434     +172     
- Partials       28       30       +2     

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[sonarqubecloud]

Quality Gate failed

Failed conditions
1 New Critical Issues (required ≤ 0)
3 New Major Issues (required ≤ 0)

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[rleojoseph]

Can we fix the build issues @SmritiRakuten ?