Fixed typo on communication costs section

[patphongs]

Summary (required)

• Resolves Update communication cost text to say "oppose" #3374
  Fixed typo in candidate profile page communication costs section. Updated Oppose section to have detail language also read "Spent by others to oppose..."

Impacted areas of the application

List general components of the application that this PR will affect:

• Candidate profile page communication costs section: http://localhost:8000/data/candidate/H0PA12181/?tab=other-spending#communication-costs

Screenshots

How to test

• Checkout this branch
• Make sure the communication costs section text is now correct: http://localhost:8000/data/candidate/H0PA12181/?tab=other-spending#communication-costs

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[JonellaCulmer]

Perfect! Thank you, @patphongs