Chore: Improve typings (#78940)

* improve typings

* transformations typings improvements

* add bootData to window

* more grafana-data fixes

* undo window.grafanaBootData typings

packages/grafana-data/src/dataframe/DataFrameView.test.ts

@@ -46,7 +46,12 @@ describe('dataFrameView', () => {
   it('Should support array indexes', () => {
     expect(vector.length).toEqual(3);
 
-    const first = vector.get(0) as any;
+    const first = vector.get(0) as unknown as [
+      MySpecialObject['time'],
+      MySpecialObject['name'],
+      MySpecialObject['value'],
+      MySpecialObject['more'],
+    ];
     expect(first[0]).toEqual(100);
     expect(first[1]).toEqual('a');
     expect(first[2]).toEqual(1);
@@ -84,7 +89,10 @@ describe('dataFrameView', () => {
   });
 
   it('Can handle fields with number name', () => {
-    const view = new DataFrameView<MySpecialObject>(
+    const view = new DataFrameView<{
+      '1': string;
+      '2': string;
+    }>(
       new MutableDataFrame({
         fields: [
           { name: '1', type: FieldType.string, values: ['a'] },
@@ -93,7 +101,7 @@ describe('dataFrameView', () => {
       })
     );
 
-    const obj = view.get(0) as any;
+    const obj = view.get(0);
     expect(obj['1']).toEqual('a');
     expect(obj['2']).toEqual('b');
   });

packages/grafana-data/src/dataframe/MutableDataFrame.ts

@@ -162,7 +162,7 @@ export class MutableDataFrame<T = any> extends FunctionalVector<T> implements Da
     return parser;
   }
 
-  private parseValue(field: Field, v: any): any {
+  private parseValue(field: Field, v: string) {
     let p = this.parsers?.get(field);
     if (!p) {
       p = this.setParser(field, makeFieldParser(v, field));

packages/grafana-data/src/dataframe/StreamingDataFrame.ts

@@ -123,7 +123,7 @@ export class StreamingDataFrame implements DataFrame {
 
     dataFrameDTO.fields = dataFrameDTO.fields.map((f) => ({
       ...f,
-      values: (f.values as unknown[]).slice(numberOfItemsToRemove),
+      values: f.values?.slice(numberOfItemsToRemove),
     }));
 
     const length = dataFrameDTO.fields[0]?.values?.length ?? 0;