Robs feedback points

[JesperWe]

• [x] Add title: "Map of largest projects" above map (same font size as "Emissions - Current annual estimate").

• [x] Add question mark icon on "Country CO2 Snapshot" to POEditor country_snapshot_explanation.

• [x] Make text headings "Now (2020) M ton CO²e" , "Historic M ton CO²e" , "Production Scenario emissions until 2040 M ton CO²e" link to POEditor entries. Respectively: now_heading , historic_heading , 2040_heading

• [x] Put question marks in each of these which link to POEditor terms now_heading_explanation, historic_heading_explanation , 2040_heading_explanation

• [x] Add question mark links on each of the "Low/Mid/High" labels to POEditor terms P5, WA, P95

[OpenOilUG]

units - standardise on MT "Now" = year of last historic data point in that instance "Historic" = First Year of Dataset -> Last Year of Dataset (production)