Vue end-to-end prototype

[rimutaka]

Build a simple end-to-end prototype using Vue with the following functionality:

• employer login via LinkedIn

• parsing of JWT token by Lambda

• returning a GraphQL response with homepage data

• [ ] move custom styles from App.vue to a shared space to match HTML UI styles

[rimutaka]

• [ ] validate JWT contents in Vue to give an informative error about name / email completeness
• [ ] use a custom Validation config object for time leeway

[rimutaka]

• [ ] reuse GQL schema between calls (RootNode::new_with_scalar_value)
• [ ] understand why we need this in fn deserialize:

          fn visit_u64<E: de::Error>(self, b: u64) -> Result<Self::Value, E> {
              // I do not understand why this IF is needed
              if b <= u64::from(u32::MAX) {
                  self.visit_i32(b.try_into().unwrap())
              } else {
                  Ok(RustScalarValue::U64(b))
              }
          }