Add desktop mode support to browser

#Description
As a user, I want to display some websites that doesn't support mobile device or provides limited support for mobile in desktop mode so that I can see the entire website or use the website

#Situation
**GIVEN:** A website that offers limited support for mobile, such as yearn.finance where the vault earn rate doesn't show on mobile
**WHEN:** A user visits the site that offers sub optimal mobile experiences
**THEN:** User can decide to switch to the website to display in desktop mode

**Acceptance Criteria**
Add option to display as desktop site

**Process** (adapt per story)
- [ ] User research / data
- [ ] Ideation / Kickoff in cross-functional team
- [ ] Pattern research in mobile (crypto / non-crypto space)
- [ ] Proof of concept to check technical feasibility (if applicable)
- [ ] Design reviews with PM, Engineer(s)
- [ ] User testing
- [ ] Design - Dev handoff
- [ ] Implementation
- [ ] Code review
- [ ] Stakeholder review on latest build on iOS and Android
- [ ] QA - unit test, e2e tests, regression testing

The issue names no files, tests, or implementation entry points. Start by locating the mobile browser flow and researching how iOS and Android expose desktop-site options; done means users can choose desktop mode for limited mobile websites and the behavior is covered by unit, end-to-end, and regression testing.

Written by the indexing model from the issue text.