Moved shared TechDocs utilities from plugin-techdocs to plugin-techdocs-react

Co-authored-by: Eric Peterson <iamEAP@users.noreply.github.com>
Co-authored-by: Anders Näsman <realandersn@users.noreply.github.com>
Signed-off-by: Otto Sichert <git@ottosichert.de>

plugins/techdocs/package.json

@@ -47,8 +47,8 @@
     "@backstage/plugin-catalog": "^1.1.0-next.2",
     "@backstage/plugin-search": "^0.7.5-next.0",
     "@backstage/plugin-techdocs-react": "^0.0.0",
-    "@backstage/version-bridge": "^1.0.0",
     "@backstage/theme": "^0.2.15",
+    "@backstage/version-bridge": "^1.0.0",
     "@material-ui/core": "^4.12.2",
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "4.0.0-alpha.57",