Use "Service Ping/Data" for the Usage Ping Disabled components

What does this MR do?

Related to #334219 (closed)

- usage_ping_or_data = /(usage)[ _-]?(?:ping|data)/i # Usage Ping, usage-ping, usage_ping, Usage Data...

We need to replace instances of usage_ping_or_data with "service". I'm focusing on visible content, but I'm taking the chance to rename some variables and other symbols when possible. You might find more instances of usage_ping_or_data but these are going to be addressed on #334569 (closed) 🚧

Screenshots

Admin Area › DevOps Report (with disabled service ping)

Admin Area › DevOps Report (with disabled service ping without devops adoption)

Does this MR meet the acceptance criteria?

Conformity

• I have included changelog trailers, or none are needed. (Does this MR need a changelog?)
• I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.
• This change is backwards compatible across updates, or this does not apply.

Availability and Testing

• I have added/updated tests following the Testing Guide, or it's not needed. (Consider all test levels. See the Test Planning Process.)