fix: correct 6 typos in codebase

.gemini/commands/review-frontend.toml

@@ -64,7 +64,7 @@ Follow these steps:
       state from within a `setState`. Make sure to comment about absolutely
       every case like this as these cases have introduced multiple bugs in the
       past. Typically these cases should be resolved using a reducer although
-      occassionally other techniques such as useRef are appropriate. Consider
+      occasionally other techniques such as useRef are appropriate. Consider
       suggesting that jacob314@ be tagged on the code review if the solution is
       not 100% obvious.
     * Whether code might introduce an infinite rendering loop in React.

packages/cli/src/ui/components/__snapshots__/LoadingIndicator.test.tsx.snap

@@ -1,6 +1,6 @@
 // Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
 exports[`<LoadingIndicator /> > should truncate long primary text instead of wrapping 1`] = `
-"MockRespondin This is an extremely long loading phrase that shoul… (esc to
+"MockRespondin This is an extremely long loading phrase that should… (esc to
 gSpinner                                                           cancel, 5s)"
 `;

packages/cli/src/ui/components/messages/__snapshots__/GeminiMessage.test.tsx.snap

@@ -14,7 +14,7 @@ exports[`<GeminiMessage /> - Raw Markdown Display Snapshots > renders pending st
    1 const x = 1;"
 `;
 
-exports[`<GeminiMessage /> - Raw Markdown Display Snapshots > renders with renderMarkdown=false '(raw markdown with syntax highlightin…' 1`] = `
+exports[`<GeminiMessage /> - Raw Markdown Display Snapshots > renders with renderMarkdown=false '(raw markdown with syntax highlighting…' 1`] = `
 "✦  Test **bold** and \`code\` markdown
 
    \`\`\`javascript

packages/core/src/availability/policyHelpers.ts

@@ -106,7 +106,7 @@ export function resolvePolicyAction(
 
 /**
  * Creates a context provider for retry logic that returns the availability
- * sevice and resolves the current model's policy.
+ * service and resolves the current model's policy.
  *
  * @param modelGetter A function that returns the model ID currently being attempted.
  *        (Allows handling dynamic model changes during retries).

packages/core/src/utils/customHeaderUtils.ts

@@ -5,7 +5,7 @@
  */
 
 /**
- * Parses custom headers and returns a map of key and vallues
+ * Parses custom headers and returns a map of key and values
  */
 export function parseCustomHeaders(
   envValue: string | undefined,