Move file-viewers-config to models

Feature #13540

Arvados-DCO-1.1-Signed-off-by: Michal Klobukowski <michal.klobukowski@contractors.roche.com>

diff --git a/src/common/file-viewers-config.ts b/src/models/file-viewers-config.ts
similarity index 100%
rename from src/common/file-viewers-config.ts
rename to src/models/file-viewers-config.ts