feat: add dont_switch_primary

src/components/options/Display.vue

@@ -157,5 +157,40 @@ loadDisplays();
                 v-model="prf.current!.data.display.borderless_fullscreen"
             />
         </OptionRow>
+        <OptionRow
+            title="Skip switching primary display"
+            v-if="
+                capabilities.includes('display') &&
+                prf.current?.data.display.target !== 'default' &&
+                (prf.current!.data.display.dont_switch_primary ||
+                    displayList.length > 2)
+            "
+            dangerous-tooltip="Only enable this option if switching the primary display causes issues. The monitors must have a matching refresh rate."
+        >
+            <ToggleSwitch
+                :disabled="extraDisplayOptionsDisabled"
+                v-model="prf.current!.data.display.dont_switch_primary"
+            />
+        </OptionRow>
+        <OptionRow
+            title="Unity display index"
+            class="number-input"
+            v-if="
+                capabilities.includes('display') &&
+                prf.current?.data.display.target !== 'default' &&
+                prf.current!.data.display.dont_switch_primary
+            "
+        >
+            <InputNumber
+                class="shrink"
+                size="small"
+                :min="1"
+                :max="32"
+                :use-grouping="false"
+                v-model="prf.current!.data.display.monitor_index_override"
+                :disabled="extraDisplayOptionsDisabled"
+                :allow-empty="true"
+            />
+        </OptionRow>
     </OptionCategory>
 </template>