Add more linting rules (#2406)

As a precursor to #2394, add a bunch of linting rules to try and catch
more mistakes/potential code errors/unnecessary code. Add a bunch of
rules from https://eslint.vuejs.org/rules/ in the "uncategorized"
section that seem useful to have.

photon-client/src/components/app/photon-camera-stream.vue

@@ -50,7 +50,7 @@ const containerStyle = computed<StyleValue>(() => {
 });
 
 const overlayStyle = computed<StyleValue>(() => {
-  if (useStateStore().colorPickingMode || streamSrc.value == emptyStreamSrc) {
+  if (useStateStore().colorPickingMode || streamSrc.value === emptyStreamSrc) {
     return { display: "none" };
   } else {
     return {};