Incorporate ProtonDB

[dmadisetti]

ProtonDB (https://www.protondb.com/) records launch success of steam games. steam-cli recently incoporated it, and it looks like a good idea: https://github.com/berenm/steam-cli/commit/9bbea6cde6eacef36d0238010bc5a7a6285c6898#diff-82fc0ff3244406a7f0187ea4888af1a9ccae35e24f62e7eb145420e146c3a4a8R527

For windows games we try to launch directly with wine, but really we should refer to proton db- if it's valid we should try to run with proton

• [x] Query ProtonDB for games
• [ ] Launch with proton if needed

[dmadisetti]

@aflyingpumpkin has started work on this: https://github.com/aflyingpumpkin/steam-tui/commit/7a828142c6a6ecb31f1c419588fe68556a4aa8d3