refactor: перенос docusaurus в корень, так как больше ничего не планируется в этой репе держать

Reviewed-on: #2
Co-authored-by: Arswarog <arswarog@yandex.ru>
Co-committed-by: Arswarog <arswarog@yandex.ru>

action.yml

@@ -47,24 +47,24 @@ runs:
     - name: Copy docs into Docusaurus
       shell: bash
       run: |
-        DOCUSAURUS_DIR="${{ github.action_path }}/docusaurus"
+        DOCUSAURUS_DIR="${{ github.action_path }}"
         rm -rf "${DOCUSAURUS_DIR}/docs"
         cp -r "${{ inputs.docs-path }}" "${DOCUSAURUS_DIR}/docs"
         cp "${{ github.workspace }}/.docuservix.yml" "${DOCUSAURUS_DIR}"
 
     - name: Prepare docs
       shell: bash
-      working-directory: ${{ github.action_path }}/docusaurus
+      working-directory: ${{ github.action_path }}
       run: node scripts/prepare-docs.mjs
 
     - name: Install Docusaurus dependencies
       shell: bash
-      working-directory: ${{ github.action_path }}/docusaurus
+      working-directory: ${{ github.action_path }}
       run: yarn install --frozen-lockfile
 
     - name: Build docs
       shell: bash
-      working-directory: ${{ github.action_path }}/docusaurus
+      working-directory: ${{ github.action_path }}
       env:
         DOCUSERVIX_ON_BROKEN_LINKS: ${{ inputs.on-broken-links }}
         DOCUSERVIX_URL: ${{ env.TARGET_URL }}