Update content and links on the bug reports /docs page

[JeffLowe]

Correct several links and content on https://web3.storage/docs/community/help-and-support/#bug-reports-or-feature-requests

• [x] eliminate bullet hyperlinks to issue templates, and instead hyperlink the "File an issue" copy with https://github.com/web3-storage/web3.storage/issues/new/choose
• [x] Change the copy under "Request more storage space" section to be: "Need more space on Web3.Storage? You can request more from your Web3.Storage account management page. The Web3.Storage team will get right back to you.