Minor fixes to Timelines UI

[offtherailz]

Description

• When the animation is active, the settings button should be disabled because it can not be opened.
• Also the stop button should be disabled if the animation is not active.
• Range button tootlips and i18n:

"offsetRangeStart":"go to the Offset Range", --> "Go to the current time range"
"offsetTime" : "go to the Offset Range",  --> "Go to the current time range"
"hideLayerName" : "Hide layers name", -->  "Hide layers names"
"showLayerName" : "Show layers name", --> "Show layers names",
"enableOffset": "Enable current time with offset", --> "Enable time range"
"disableOffset": "Disable current time with offset" --> "Disabled time range"

• enableOffset and disableOffset labels are switched, make them coherent with the button