Remove sentence-case eslint suppressions from settings UI

The Obsidian plugin review rejects any disabling of
obsidianmd/ui/sentence-case, so drop all six disable comments covering
mid-sentence link texts ("this certificate", "wiki", "the online
docs", "the project readme"). The underlying rule violations are left
in place for now — local eslint reports them as errors — so we can
observe exactly how the review tooling treats the bare violations
before deciding between rewording the copy or assigning link text
outside of createEl's text option.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>