refactor(pages): refine Project pages

* refactor ProjectOverview component to let consumers handle the value
* extract project overview depending on Github to avoid fetching
Github API if the project is not on Github
* wrap dynamic import in a useMemo hook to avoid infinite rerender
* fix table of contents by adding a useMutationObserver hook to refresh
headings tree (without it useHeadingsTree is not retriggered once the
dynamic import is done)
* add Cypress tests

1 files changed, 1 insertions, 0 deletions

diff --git a/src/utils/hooks/use-mutation-observer/index.ts b/src/utils/hooks/use-mutation-observer/index.ts
new file mode 100644
index 0000000..16780fe
--- /dev/null
+++ b/src/utils/hooks/use-mutation-observer/index.ts
@@ -0,0 +1 @@
+export * from './use-mutation-observer';