serverSideConfig renamed into profileSettingConfig to avoid confusion

with serverSideStorage, reduced overall need for SharedComputedObject in
settings tabs, moved copypaste code of "setting" type of helpers into a
separate file.

src/components/settings_modal/helpers/setting.js

@@ -0,0 +1,84 @@
+import { get, set } from 'lodash'
+export default {
+  props: {
+    path: {
+      type: String,
+      required: true
+    },
+    disabled: {
+      type: Boolean,
+      default: false
+    },
+    parentPath: {
+      type: String
+    },
+    parentInvert: {
+      type: Boolean,
+      default: false
+    },
+    expert: {
+      type: [Number, String],
+      default: 0
+    },
+    source: {
+      type: String,
+      default: 'default'
+    }
+  },
+  computed: {
+    state () {
+      const value = get(this.configSource, this.path)
+      if (value === undefined) {
+        return this.defaultState
+      } else {
+        return value
+      }
+    },
+    shouldBeDisabled () {
+      const parentValue = this.parentPath !== undefined ? get(this.configSource, this.parentPath) : null
+      return this.disabled || (parentValue !== null ? (this.parentInvert ? parentValue : !parentValue) : false)
+    },
+    configSource () {
+      switch (this.source) {
+        case 'profile':
+          return this.$store.state.profileConfig
+        default:
+          return this.$store.getters.mergedConfig
+      }
+    },
+    configSink () {
+      switch (this.source) {
+        case 'profile':
+          return (k, v) => this.$store.dispatch('setProfileOption', { name: k, value: v })
+        default:
+          return (k, v) => this.$store.dispatch('setOption', { name: k, value: v })
+      }
+    },
+    defaultState () {
+      switch (this.source) {
+        case 'profile':
+          return {}
+        default:
+          return get(this.$store.getters.defaultConfig, this.path)
+      }
+    },
+    isProfileTied () {
+      return this.source === 'profile'
+    },
+    isChanged () {
+      return !this.source === 'default' && this.state !== this.defaultState
+    },
+    matchesExpertLevel () {
+      return (this.expert || 0) <= this.$store.state.config.expertLevel > 0
+    }
+  },
+  methods: {
+    update (e) {
+      console.log('U', this.path, e)
+      this.configSink(this.path, e)
+    },
+    reset () {
+      set(this.$store.getters.mergedConfig, this.path, this.defaultState)
+    }
+  }
+}