chore: add event label to google login button

[schmanu]

What it solves

Currently we cannot differentiate between a click on the Google login button in the navigation bar or on our welcome page.

How this PR fixes it

Adds an event label which is either "welcome or

How to test it

Click on login with google button in header and welcome page and observe different event labels.

Checklist

• I've tested the branch on mobile 📱
• I've documented how it affects the analytics (if at all) 📊
• I've written a unit/e2e test for it (if applicable) 🧑‍💻

[github-actions]

Branch preview

✅ Deploy successful!

https://tracking_label_connect_google--walletweb.review-wallet-web.5afe.dev

[github-actions]

ESLint Summary View Full Report

Annotations are provided inline on the Files Changed tab. You can also see all annotations that were generated on the annotations page.

Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	75.08% (+0.01% 🔼)	10092/13441
🔴	Branches	49.61% (-0.01% 🔻)	2051/4134
🔴	Functions	57.53%	1498/2604
🟡	Lines	76.65% (+0.01% 🔼)	9128/11908

Show files with reduced coverage 🔻

St.❔	File	Statements	Branches	Functions	Lines
🟢	... / index.tsx	80.6% (+0.29% 🔼)	72.22% (-2.78% 🔻)	60%	85.25% (+0.25% 🔼)

Test suite run success

1105 tests passing in 155 suites.

Report generated by 🧪jest coverage report action from d3b0d0b