Full Curriculum: Capitalize Google (#29308)

[oshkosher]

Capitalize uses of "google", without modifying URLs or code. There is also one one file in the theodinproject repo that should be fixed.

Because

The word Google appears in lowercase in places, sometimes as a noun, sometimes as a verb, and sometimes as an adjective ("googleable"). It is a trademark, and should thus be capitalized.

This PR

• foundations/html_css/flexbox/project-landing-page.md
  • "use google" -> "use Google"
  • "google css rounded corners" -> "Google css rounded corners"
• foundations/installations/installations.md
  • "You can google" -> "You can Google"
• foundations/introduction/join_the_odin_community.md
  • "googleable questions" -> "Googleable questions"
• intermediate_html_css/grid/advanced_grid_properties.md
  • "use google" -> "use Google"
• intermediate_html_css/grid/positioning_grid_elements.md
  • "use google" -> "use Google"
• ruby_on_rails/apis/project_kittens_api.md
  • "google XYZ API docs" -> "Google XYZ API docs"

Issue

Closes #29308

Additional Information

There is an additional use of lowercase "google" in the "theodinproject" repo in
app/views/guides/community/rules.html.erb

Pull Request Requirements

• I have thoroughly read and understand The Odin Project curriculum contributing guide
• The title of this PR follows the location of change: brief description of change format, e.g. Intro to HTML and CSS lesson: Fix link text
• The Because section summarizes the reason for this PR
• The This PR section has a bullet point list describing the changes in this PR
• If this PR addresses an open issue, it is linked in the Issue section
• If any lesson files are included in this PR, they have been previewed with the Markdown preview tool to ensure it is formatted correctly
• If any lesson files are included in this PR, they follow the Layout Style Guide

[JoshDevHub]

Approved.

Feel free to put a PR (no need to make an issue first) that capitalizes it on the rules page on the main site repo.