chore: simplify .gitignore

Signed-off-by: Rongrong <i@rong.moe>

.gitignore

@@ -196,48 +196,9 @@ cython_debug/
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 
-# User-specific stuff
-.idea/**/workspace.xml
-.idea/**/tasks.xml
-.idea/**/usage.statistics.xml
-.idea/**/dictionaries
-.idea/**/shelf
-
-# Generated files
-.idea/**/contentModel.xml
-
-# Sensitive or high-churn files
-.idea/**/dataSources/
-.idea/**/dataSources.ids
-.idea/**/dataSources.local.xml
-.idea/**/sqlDataSources.xml
-.idea/**/dynamic.xml
-.idea/**/uiDesigner.xml
-.idea/**/dbnavigator.xml
-
-# Gradle
-.idea/**/gradle.xml
-.idea/**/libraries
-
-# Gradle and Maven with auto-import
-# When using Gradle or Maven with auto-import, you should exclude module files,
-# since they will be recreated, and may cause churn.  Uncomment if using
-# auto-import.
-# .idea/artifacts
-# .idea/compiler.xml
-# .idea/jarRepositories.xml
-# .idea/modules.xml
-# .idea/*.iml
-# .idea/modules
-# *.iml
-# *.ipr
-
 # CMake
 cmake-build-*/
 
-# Mongo Explorer plugin
-.idea/**/mongoSettings.xml
-
 # File-based project format
 *.iws
 
@@ -250,21 +211,12 @@ out/
 # JIRA plugin
 atlassian-ide-plugin.xml
 
-# Cursive Clojure plugin
-.idea/replstate.xml
-
 # Crashlytics plugin (for Android Studio and IntelliJ)
 com_crashlytics_export_strings.xml
 crashlytics.properties
 crashlytics-build.properties
 fabric.properties
 
-# Editor-based Rest Client
-.idea/httpRequests
-
-# Android studio 3.1+ serialized cache file
-.idea/caches/build_file_checksums.ser
-
 ### VirtualEnv template
 # Virtualenv
 # http://iamzed.com/2009/05/07/a-primer-on-virtualenv/
@@ -295,12 +247,11 @@ pip-selfcheck.json
 ### User defined
 config/
 icon/
-.idea
+.idea/
 *.sh
 *.bat
 *.cmd
 *.bak
 docker-compose*.yml
+docker-compose*.yaml
 .version
-src/db/config_**_sample.py
-src/db/create_migrations.py