Add .idea directory to gitignore

.idea directory is used for storing settings of the IntelliJ-family of
IDEs. It should not be included in the repository.

Signed-off-by: Tomáš Nevrlka <[email protected]>

rh-pre-commit.version: 2.3.2
rh-pre-commit.check-secrets: ENABLED

Author: tnevrlka

.gitignore

@@ -6,3 +6,4 @@ render/node_modules/
 .env
 .envrc
 bin/shfmt
+.idea/**