Adjustments to the Commons icon in Media Viewer
To achieve consistency with the icons in the Media Viewer panel,
the following has been adjusted:
- Colors onf the "share" icon to match the rest of the icons (updated to the new gray values of Agora).
- Size of the Commons icon has been adjusted both in the SVG file and when it is added in the LESS/CSS. Due to the different aspect ratio of this icon, extra spacing has been added to make it visually fit.

Change-Id: Ic14a869ea96ea1a8202c9988f0c5d330ba3e9a70
Merge "Adjustments to the Commons icon in Media Viewer To achieve consistency with the icons in the Media Viewer panel, the following has been adjusted: - Colors onf the "share" icon to match the rest of the icons (updated to the new gray values of Agora). - Size of the Commons icon has been adjusted both in the SVG file and when it is added in the LESS/CSS. Due to the different aspect ratio of this icon, extra spacing has been added to make it visually fit."