[Linting] Fix some violations of no-explicit-any

Docs for rule at [1]. Fixes 7 violations; 29 left for #162.

[1]: https://typescript-eslint.io/rules/no-explicit-any/

src/models/mongoose_models/MetadataCardSchema.ts

@@ -12,12 +12,16 @@ export interface IStreak {
   timeStamp: number;
 }
 
-export type IStreakMap = IStreak & Map<string, any>;
+export type IStreakMap = IStreak & Map<string, Array<string> | number>;
 
 interface IMetadataNodeInformationEntry {
   [id: string]: { urgency: number };
 }
 
+interface IMetadataNodeStatsEntry {
+  [id: string]: { urgency?: number };
+}
+
 export interface IMetadataNodeInformation {
   [tag: string]: IMetadataNodeInformationEntry;
 }
@@ -31,7 +35,7 @@ export interface IMetadata {
   metadataIndex: number;
   node_information: Array<IMetadataNodeInformation>;
   trashed_cards: Array<IMetadataTrashedCardInformation>;
-  stats: Array<any>;
+  stats: Array<IMetadataNodeStatsEntry>;
   streak: IStreak;
   cardsAreByDefaultPrivate: boolean;
 }

src/public/src/components/card-viewer/base-card-viewer.ts

@@ -1,5 +1,12 @@
 import { consume } from "@lit/context";
-import { css, html, LitElement, nothing, TemplateResult } from "lit";
+import {
+  css,
+  html,
+  LitElement,
+  nothing,
+  PropertyValues,
+  TemplateResult,
+} from "lit";
 import { property } from "lit/decorators.js";
 import { createRef, Ref, ref } from "lit/directives/ref.js";
 import { unsafeHTML } from "lit/directives/unsafe-html.js";
@@ -28,7 +35,7 @@ export interface CardDescription {
 
 export class CardViewer extends LitElement {
   @property({ type: Object })
-  protected card: Card | null = null;
+  public card: Card | null = null;
 
   @consume({ context: cardsCarouselContext, subscribe: true })
   protected cardsCarousel?: CardsCarousel;
@@ -49,13 +56,13 @@ export class CardViewer extends LitElement {
     return new Set(this.card.tags.split(" ").filter(Boolean));
   }
 
-  protected willUpdate(changedProperties: Map<string, any>) {
+  protected willUpdate(changedProperties: PropertyValues<this>) {
     if (changedProperties.has("card")) {
       this.updatePromptAndResponse();
     }
   }
 
-  updated(changedProperties: Map<string, any>) {
+  updated(changedProperties: PropertyValues<this>) {
     if (changedProperties.has("card")) {
       if (this.card) {
         this.cardDialogRef.value?.showModal();

src/public/src/components/card-viewer/components/editable-card-description.ts

@@ -1,4 +1,4 @@
-import { css, html, LitElement } from "lit";
+import { css, html, LitElement, PropertyValues } from "lit";
 import { customElement, property, state } from "lit/decorators.js";
 import { createRef, Ref, ref } from "lit/directives/ref.js";
 
@@ -20,7 +20,7 @@ export class EditableCardDescriptionElement extends LitElement {
 
   private descriptionRef: Ref<HTMLDivElement> = createRef();
 
-  protected willUpdate(changedProperties: Map<string, any>) {
+  protected willUpdate(changedProperties: PropertyValues<this>) {
     if (changedProperties.has("value") || changedProperties.has("canEdit")) {
       this.showOverlay = !this.canEdit && this.value
         && this.value.type === CardDescriptionType.Response;

src/public/src/components/card-viewer/editable-card-viewer.ts

@@ -1,4 +1,4 @@
-import { css, html, nothing } from "lit";
+import { css, html, nothing, PropertyValues } from "lit";
 import { customElement, property, state } from "lit/decorators.js";
 
 import { CardsCarouselUpdateCursorDirection } from "../../context/cards-carousel-context.js";
@@ -29,14 +29,14 @@ export class EditableCardViewer extends CardViewer {
   }
 
   @property({ type: Object })
-  protected card: PrivateCardResult = null;
+  public card: PrivateCardResult = null;
 
   @state()
   protected canEdit = false;
 
   private pendingChanges: PendingChanges = {};
 
-  protected willUpdate(changedProperties: Map<string, any>) {
+  protected willUpdate(changedProperties: PropertyValues<this>) {
     if (changedProperties.has("card")) {
       this.canEdit = false;
     }

src/public/src/components/card-viewer/public-card-viewer.ts

@@ -17,7 +17,7 @@ enum FlagReason {
 @customElement("public-card-viewer")
 export class PublicCardViewer extends CardViewer {
   @property({ type: Object })
-  protected card: PublicCardResult = null;
+  public card: PublicCardResult = null;
 
   private flagCard(reason: FlagReason) {
     if (!this.card) {

src/public/src/models/core/ternary-search-trie.ts

@@ -3,7 +3,7 @@ interface TSTNode {
   left: TSTNode | null;
   mid: TSTNode | null;
   right: TSTNode | null;
-  val: any;
+  val: boolean | null;
 }
 
 /**

src/server.ts

@@ -106,7 +106,7 @@ if (config.IS_TS_NODE) {
   app.use(express.static(newStaticsPath));
 }
 
-app.use(function(err: any, req: Request, res: Response) {
+app.use(function(err: Error, req: Request, res: Response) {
   console.error(err.stack);
   res.status(500).render(
     "pages/5xx_error_page.ejs",