Bump bootstrap from 4.3.1 to 4.4.1

Bumps [bootstrap](https://github.com/twbs/bootstrap) from 4.3.1 to 4.4.1.
- [Release notes](https://github.com/twbs/bootstrap/releases)
- [Commits](https://github.com/twbs/bootstrap/compare/v4.3.1...v4.4.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: npmbuildbot[bot] <npmbuildbot[bot]@users.noreply.github.com>

package-lock.json

@@ -2876,9 +2876,9 @@
       "dev": true
     },
     "bootstrap": {
-      "version": "4.3.1",
-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.3.1.tgz",
-      "integrity": "sha512-rXqOmH1VilAt2DyPzluTi2blhk17bO7ef+zLLPlWvG494pDxcM234pJ8wTc/6R40UWizAIIMgxjvxZg5kmsbag=="
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.4.1.tgz",
+      "integrity": "sha512-tbx5cHubwE6e2ZG7nqM3g/FZ5PQEDMWmMGNrCUBVRPHXTJaH7CBDdsLeu3eCh3B1tzAxTnAbtmrzvWEvT2NNEA=="
     },
     "brace-expansion": {
       "version": "1.1.11",

package.json

@@ -34,7 +34,7 @@
     "autosize": "^4.0.2",
     "backbone": "^1.4.0",
     "blueimp-md5": "^2.12.0",
-    "bootstrap": "^4.3.1",
+    "bootstrap": "^4.4.1",
     "clipboard": "^2.0.4",
     "css-vars-ponyfill": "^2.1.2",
     "davclient.js": "git+https://github.com/owncloud/davclient.js.git#0.2.1",