bun install fails

[alan-wu]

Running bun installs on various version of node will fail with typescript errors.

src/layers/flightpaths.ts:110:15 - error TS2339: Property 'setUniforms' does not exist on type 'Model'.

110         model.setUniforms({numSegments: numSegments})
                  ~~~~~~~~~~~

src/layers/flightpaths.ts:260:56 - error TS2352: Conversion of type 'number[]' to type 'Position' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
  Type 'number[]' is not comparable to type 'readonly [number, number, number]'.
    Target requires 3 element(s) but source may have fewer.

260             getSourcePosition: (f: PathProperties) => (f.pathStartPosition as Position),
                                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/layers/flightpaths.ts:261:56 - error TS2352: Conversion of type 'number[]' to type 'Position' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
  Type 'number[]' is not comparable to type 'readonly [number, number, number]'.
    Target requires 3 element(s) but source may have fewer.

261             getTargetPosition: (f: PathProperties) => (f.pathEndPosition as Position),
                                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



Found 3 errors in the same file, starting at: src/layers/flightpaths.ts:110