Fix typos batch 2 signed

[Dragboyz]

1. prompots → prompts (in get-started/quickstart.md)
2. can be appear → can appear (in tools/tokens-in-coinbase-wallet.mdx)
3. Baset → Base (in base-app-beta.mdx - appears twice)
4. 'rouote' → 'route' in migrate-existing-apps.mdx
5. 'monetiziation' → 'monetization' in get-started/base.mdx
   These corrections improve readability and maintain the high quality standards of Base documentation.

Notes to reviewers

• All typos were found through careful manual review of multiple documentation sections
• Changes are minimal and focused only on spelling/grammar corrections
• No functional changes to the documentation content
• This is the second batch of typo fixes first PR Fix typos batch 2 #517

How has it been tested?

• Manually verified each typo exists in the source files using grep commands
• Confirmed corrections are grammatically correct
• Tested that changes don't break any existing functionality
• Reviewed changes in local development environment

[cb-heimdall]

✅ Heimdall Review Status

Requirement	Status	More Info
Reviews	✅ 1/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[Dragboyz]

thank you