Upgraded bower.json version to 1.4.258
Upgraded bower.json version to 1.4.258

Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client